71257677232 has 40 divisors (see below), whose sum is σ = 158752902656. Its totient is φ = 30351640896.

The previous prime is 71257677229. The next prime is 71257677233. The reversal of 71257677232 is 23277675217.

It is not an unprimeable number, because it can be changed into a prime (71257677233) 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, 1933368 + ... + 1969879.

Almost surely, 2^71257677232 is an apocalyptic number.

It is an amenable number.

71257677232 is an abundant number, since it is smaller than the sum of its proper divisors (87495225424).

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

71257677232 is a wasteful number, since it uses less digits than its factorization.

71257677232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903425 (or 3903419 counting only the distinct ones).

The product of its digits is 1728720, while the sum is 49.

The spelling of 71257677232 in words is "seventy-one billion, two hundred fifty-seven million, six hundred seventy-seven thousand, two hundred thirty-two".