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28758056056801 is a prime number
BaseRepresentation
bin1101000100111110000011…
…01101110011011111100001
310202211020120101001120020221
412202133001231303133201
512232132444322304201
6141055134002203041
76025462303142401
oct642370155633741
9122736511046227
1028758056056801
11918824aa176a5
123285606953481
131307b47123b56
14715c7c42c801
1534d0e2b184a1
hex1a27c1b737e1

28758056056801 has 2 divisors, whose sum is σ = 28758056056802. Its totient is φ = 28758056056800.

The previous prime is 28758056056783. The next prime is 28758056056823. The reversal of 28758056056801 is 10865065085782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28424081867776 + 333974189025 = 5331424^2 + 577905^2 .

It is a cyclic number.

It is not a de Polignac number, because 28758056056801 - 223 = 28758047668193 is a prime.

It is a super-3 number, since 3×287580560568013 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 28758056056801.

It is not a weakly prime, because it can be changed into another prime (28758056054801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14379028028400 + 14379028028401.

It is an arithmetic number, because the mean of its divisors is an integer number (14379028028401).

Almost surely, 228758056056801 is an apocalyptic number.

It is an amenable number.

28758056056801 is a deficient number, since it is larger than the sum of its proper divisors (1).

28758056056801 is an equidigital number, since it uses as much as digits as its factorization.

28758056056801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 28758056056801 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, fifty-six thousand, eight hundred one".