74631564500 has 48 divisors (see below), whose sum is σ = 163163237328. Its totient is φ = 29821875200.

The previous prime is 74631564479. The next prime is 74631564521. The reversal of 74631564500 is 546513647.

It is an interprime number because it is at equal distance from previous prime (74631564479) and next prime (74631564521).

It can be written as a sum of positive squares in 8 ways, for example, as 12162560656 + 62469003844 = 110284^2 + 249938^2 .

It is a congruent number.

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, 412112 + ... + 564888.

It is an arithmetic number, because the mean of its divisors is an integer number (3399234111).

Almost surely, 2^74631564500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74631564500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81581618664).

74631564500 is an abundant number, since it is smaller than the sum of its proper divisors (88531672828).

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

74631564500 is a wasteful number, since it uses less digits than its factorization.

74631564500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153773 (or 153761 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 74631564500 in words is "seventy-four billion, six hundred thirty-one million, five hundred sixty-four thousand, five hundred".