28401574792 has 32 divisors (see below), whose sum is σ = 56866348800. Its totient is φ = 13268808000.

The previous prime is 28401574787. The next prime is 28401574793. The reversal of 28401574792 is 29747510482.

It is not an unprimeable number, because it can be changed into a prime (28401574793) 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, 1967334 + ... + 1981717.

It is an arithmetic number, because the mean of its divisors is an integer number (1777073400).

Almost surely, 2^28401574792 is an apocalyptic number.

It is an amenable number.

28401574792 is an abundant number, since it is smaller than the sum of its proper divisors (28464774008).

28401574792 is a wasteful number, since it uses less digits than its factorization.

28401574792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949117 (or 3949113 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 28401574792 in words is "twenty-eight billion, four hundred one million, five hundred seventy-four thousand, seven hundred ninety-two".