28693612590772 has 12 divisors (see below), whose sum is σ = 51036999444676. Its totient is φ = 14111612749440.

The previous prime is 28693612590757. The next prime is 28693612590779. The reversal of 28693612590772 is 27709521639682.

It can be written as a sum of positive squares in 2 ways, for example, as 9396885608356 + 19296726982416 = 3065434^2 + 4392804^2 .

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28693612590698 and 28693612590707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28693612590779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58798386213 + ... + 58798386700.

Almost surely, 2^{28693612590772} is an apocalyptic number.

It is an amenable number.

28693612590772 is a deficient number, since it is larger than the sum of its proper divisors (22343386853904).

28693612590772 is a wasteful number, since it uses less digits than its factorization.

28693612590772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117596772978 (or 117596772976 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 67.

The spelling of 28693612590772 in words is "twenty-eight trillion, six hundred ninety-three billion, six hundred twelve million, five hundred ninety thousand, seven hundred seventy-two".