71292131880 has 32 divisors (see below), whose sum is σ = 213876396000. Its totient is φ = 19011235136.

The previous prime is 71292131879. The next prime is 71292131887. The reversal of 71292131880 is 8813129217.

It is not an unprimeable number, because it can be changed into a prime (71292131887) 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, 297050430 + ... + 297050669.

It is an arithmetic number, because the mean of its divisors is an integer number (6683637375).

Almost surely, 2^71292131880 is an apocalyptic number.

It is an amenable number.

71292131880 is an abundant number, since it is smaller than the sum of its proper divisors (142584264120).

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

71292131880 is a wasteful number, since it uses less digits than its factorization.

71292131880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594101113 (or 594101109 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 71292131880 in words is "seventy-one billion, two hundred ninety-two million, one hundred thirty-one thousand, eight hundred eighty".