71715906400 has 36 divisors (see below), whose sum is σ = 175076458452. Its totient is φ = 28686362240.

The previous prime is 71715906371. The next prime is 71715906433. The reversal of 71715906400 is 460951717.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 44821642 + ... + 44823241.

It is an arithmetic number, because the mean of its divisors is an integer number (4863234957).

Almost surely, 2^71715906400 is an apocalyptic number.

It is an amenable number.

71715906400 is an abundant number, since it is smaller than the sum of its proper divisors (103360552052).

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

71715906400 is a wasteful number, since it uses less digits than its factorization.

71715906400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89644903 (or 89644890 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 71715906400 in words is "seventy-one billion, seven hundred fifteen million, nine hundred six thousand, four hundred".