Search a number
-
+
28758056060791 is a prime number
BaseRepresentation
bin1101000100111110000011…
…01101110100011101110111
310202211020120101001202201201
412202133001231310131313
512232132444322421131
6141055134002233331
76025462303160131
oct642370155643567
9122736511052651
1028758056060791
11918824aa1a6a2
123285606955847
131307b47125905
14715c7c430051
1534d0e2b19761
hex1a27c1b74777

28758056060791 has 2 divisors, whose sum is σ = 28758056060792. Its totient is φ = 28758056060790.

The previous prime is 28758056060771. The next prime is 28758056060821. The reversal of 28758056060791 is 19706065085782.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28758056060791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28758056060771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14379028030395 + 14379028030396.

It is an arithmetic number, because the mean of its divisors is an integer number (14379028030396).

Almost surely, 228758056060791 is an apocalyptic number.

28758056060791 is a deficient number, since it is larger than the sum of its proper divisors (1).

28758056060791 is an equidigital number, since it uses as much as digits as its factorization.

28758056060791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 28758056060791 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, seven hundred ninety-one".