28424618972 has 12 divisors (see below), whose sum is σ = 49804424376. Its totient is φ = 14194783440.

The previous prime is 28424618947. The next prime is 28424619029. The reversal of 28424618972 is 27981642482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4377863 + ... + 4384350.

It is an arithmetic number, because the mean of its divisors is an integer number (4150368698).

Almost surely, 2^28424618972 is an apocalyptic number.

It is an amenable number.

28424618972 is a deficient number, since it is larger than the sum of its proper divisors (21379805404).

28424618972 is a wasteful number, since it uses less digits than its factorization.

28424618972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763028 (or 8763026 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The spelling of 28424618972 in words is "twenty-eight billion, four hundred twenty-four million, six hundred eighteen thousand, nine hundred seventy-two".