28731601746 has 32 divisors (see below), whose sum is σ = 63879715200. Its totient is φ = 9572443920.

The previous prime is 28731601721. The next prime is 28731601807. The reversal of 28731601746 is 64710613782.

28731601746 is a `hidden beast` number, since 2 + 8 + 7 + 31 + 601 + 7 + 4 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21550 + ... + 240681.

It is an arithmetic number, because the mean of its divisors is an integer number (1996241100).

Almost surely, 2^28731601746 is an apocalyptic number.

28731601746 is an abundant number, since it is smaller than the sum of its proper divisors (35148113454).

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

28731601746 is a wasteful number, since it uses less digits than its factorization.

28731601746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264271 (or 264265 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 28731601746 in words is "twenty-eight billion, seven hundred thirty-one million, six hundred one thousand, seven hundred forty-six".