28396980937 has 12 divisors (see below), whose sum is σ = 30778515264. Its totient is φ = 26187773040.

The previous prime is 28396980907. The next prime is 28396980959. The reversal of 28396980937 is 73908969382.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28396980937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28396980907) 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, 100612 + ... + 258682.

It is an arithmetic number, because the mean of its divisors is an integer number (2564876272).

Almost surely, 2^28396980937 is an apocalyptic number.

It is an amenable number.

28396980937 is a deficient number, since it is larger than the sum of its proper divisors (2381534327).

28396980937 is a wasteful number, since it uses less digits than its factorization.

28396980937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159160 (or 159147 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 28396980937 in words is "twenty-eight billion, three hundred ninety-six million, nine hundred eighty thousand, nine hundred thirty-seven".