71745631400 has 24 divisors (see below), whose sum is σ = 166808593470. Its totient is φ = 28698252480.

The previous prime is 71745631367. The next prime is 71745631481. The reversal of 71745631400 is 413654717.

It can be written as a sum of positive squares in 3 ways, for example, as 70084090756 + 1661540644 = 264734^2 + 40762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179363879 + ... + 179364278.

Almost surely, 2^71745631400 is an apocalyptic number.

It is an amenable number.

71745631400 is an abundant number, since it is smaller than the sum of its proper divisors (95062962070).

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

71745631400 is a wasteful number, since it uses less digits than its factorization.

71745631400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358728173 (or 358728164 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 71745631400 in words is "seventy-one billion, seven hundred forty-five million, six hundred thirty-one thousand, four hundred".