28694752839 has 12 divisors (see below), whose sum is σ = 41452186776. Its totient is φ = 19127891952.

The previous prime is 28694752811. The next prime is 28694752913. The reversal of 28694752839 is 93825749682.

28694752839 is a `hidden beast` number, since 2 + 8 + 69 + 47 + 528 + 3 + 9 = 666.

It is not a de Polignac number, because 28694752839 - 2¹⁵ = 28694720071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28694752039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65392 + ... + 248325.

It is an arithmetic number, because the mean of its divisors is an integer number (3454348898).

Almost surely, 2^28694752839 is an apocalyptic number.

28694752839 is a deficient number, since it is larger than the sum of its proper divisors (12757433937).

28694752839 is a wasteful number, since it uses less digits than its factorization.

28694752839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323886 (or 323883 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 28694752839 in words is "twenty-eight billion, six hundred ninety-four million, seven hundred fifty-two thousand, eight hundred thirty-nine".