28317718604 has 24 divisors (see below), whose sum is σ = 56948350368. Its totient is φ = 12069112320.

The previous prime is 28317718577. The next prime is 28317718631. The reversal of 28317718604 is 40681771382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28317718577) and next prime (28317718631).

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, 2788709 + ... + 2798844.

It is an arithmetic number, because the mean of its divisors is an integer number (2372847932).

Almost surely, 2^28317718604 is an apocalyptic number.

It is an amenable number.

28317718604 is an abundant number, since it is smaller than the sum of its proper divisors (28630631764).

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

28317718604 is a wasteful number, since it uses less digits than its factorization.

28317718604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587745 (or 5587743 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28317718604 in words is "twenty-eight billion, three hundred seventeen million, seven hundred eighteen thousand, six hundred four".