71681260432 has 10 divisors (see below), whose sum is σ = 138882442118. Its totient is φ = 35840630208.

The previous prime is 71681260411. The next prime is 71681260457. The reversal of 71681260432 is 23406218617.

It can be written as a sum of positive squares in only one way, i.e., 66985721856 + 4695538576 = 258816^2 + 68524^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2240039373 + ... + 2240039404.

Almost surely, 2^71681260432 is an apocalyptic number.

It is an amenable number.

71681260432 is a deficient number, since it is larger than the sum of its proper divisors (67201181686).

71681260432 is a wasteful number, since it uses less digits than its factorization.

71681260432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480078785 (or 4480078779 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 71681260432 in words is "seventy-one billion, six hundred eighty-one million, two hundred sixty thousand, four hundred thirty-two".