28731716004 has 24 divisors (see below), whose sum is σ = 67043912320. Its totient is φ = 9576775584.

The previous prime is 28731716003. The next prime is 28731716053. The reversal of 28731716004 is 40061713782.

It is not an unprimeable number, because it can be changed into a prime (28731716003) 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, 279102 + ... + 367914.

Almost surely, 2^28731716004 is an apocalyptic number.

It is an amenable number.

28731716004 is an abundant number, since it is smaller than the sum of its proper divisors (38312196316).

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

28731716004 is a wasteful number, since it uses less digits than its factorization.

28731716004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115779 (or 115777 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 28731716004 in words is "twenty-eight billion, seven hundred thirty-one million, seven hundred sixteen thousand, four".