71642510227 has 48 divisors (see below), whose sum is σ = 83351144448. Its totient is φ = 61356113280.

The previous prime is 71642510207. The next prime is 71642510231. The reversal of 71642510227 is 72201524617.

It is a de Polignac number, because none of the positive numbers 2^k-71642510227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71642510207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11064663 + ... + 11071135.

It is an arithmetic number, because the mean of its divisors is an integer number (1736482176).

Almost surely, 2^71642510227 is an apocalyptic number.

71642510227 is a deficient number, since it is larger than the sum of its proper divisors (11708634221).

71642510227 is a wasteful number, since it uses less digits than its factorization.

71642510227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608 (or 6589 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 71642510227 in words is "seventy-one billion, six hundred forty-two million, five hundred ten thousand, two hundred twenty-seven".