28457292912 has 40 divisors (see below), whose sum is σ = 73525301520. Its totient is φ = 9484392960.

The previous prime is 28457292911. The next prime is 28457292943. The reversal of 28457292912 is 21929275482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28457292911) 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, 325212 + ... + 403332.

It is an arithmetic number, because the mean of its divisors is an integer number (1838132538).

Almost surely, 2^28457292912 is an apocalyptic number.

It is an amenable number.

28457292912 is an abundant number, since it is smaller than the sum of its proper divisors (45068008608).

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

28457292912 is a wasteful number, since it uses less digits than its factorization.

28457292912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85721 (or 85715 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 28457292912 in words is "twenty-eight billion, four hundred fifty-seven million, two hundred ninety-two thousand, nine hundred twelve".