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28495794853 is a prime number
BaseRepresentation
bin11010100010011110…
…110101001010100101
32201112220212100211101
4122202132311022211
5431324410413403
621031335440101
72026103155051
oct324236651245
981486770741
1028495794853
11110a3151489
125633226031
1328c185ca96
14154476cc61
15b1ba4d71d
hex6a27b52a5

28495794853 has 2 divisors, whose sum is σ = 28495794854. Its totient is φ = 28495794852.

The previous prime is 28495794841. The next prime is 28495794889. The reversal of 28495794853 is 35849759482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23912911044 + 4582883809 = 154638^2 + 67697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28495794853 is a prime.

It is a super-2 number, since 2×284957948532 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28495794253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14247897426 + 14247897427.

It is an arithmetic number, because the mean of its divisors is an integer number (14247897427).

Almost surely, 228495794853 is an apocalyptic number.

It is an amenable number.

28495794853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28495794853 is an equidigital number, since it uses as much as digits as its factorization.

28495794853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87091200, while the sum is 64.

The spelling of 28495794853 in words is "twenty-eight billion, four hundred ninety-five million, seven hundred ninety-four thousand, eight hundred fifty-three".