28837691496 has 32 divisors (see below), whose sum is σ = 80104699200. Its totient is φ = 9612563760.

The previous prime is 28837691473. The next prime is 28837691497. The reversal of 28837691496 is 69419673882.

28837691496 is a `hidden beast` number, since 2 + 8 + 83 + 7 + 69 + 1 + 496 = 666.

It is a super-2 number, since 2×28837691496² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28837691497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66753700 + ... + 66754131.

It is an arithmetic number, because the mean of its divisors is an integer number (2503271850).

Almost surely, 2^28837691496 is an apocalyptic number.

It is an amenable number.

28837691496 is an abundant number, since it is smaller than the sum of its proper divisors (51267007704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28837691496 is a wasteful number, since it uses less digits than its factorization.

28837691496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133507846 (or 133507836 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 28837691496 in words is "twenty-eight billion, eight hundred thirty-seven million, six hundred ninety-one thousand, four hundred ninety-six".