28427934972 has 24 divisors (see below), whose sum is σ = 66334576000. Its totient is φ = 9475588656.

The previous prime is 28427934923. The next prime is 28427934989. The reversal of 28427934972 is 27943972482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536529 + ... + 587127.

Almost surely, 2^28427934972 is an apocalyptic number.

It is an amenable number.

28427934972 is an abundant number, since it is smaller than the sum of its proper divisors (37906641028).

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

28427934972 is a wasteful number, since it uses less digits than its factorization.

28427934972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97425 (or 97423 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The spelling of 28427934972 in words is "twenty-eight billion, four hundred twenty-seven million, nine hundred thirty-four thousand, nine hundred seventy-two".