71479538164 has 24 divisors (see below), whose sum is σ = 133904584800. Its totient is φ = 33284849760.

The previous prime is 71479538149. The next prime is 71479538167. The reversal of 71479538164 is 46183597417.

It is a super-2 number, since 2×71479538164² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71479538167) 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, 7966027 + ... + 7974994.

It is an arithmetic number, because the mean of its divisors is an integer number (5579357700).

Almost surely, 2^71479538164 is an apocalyptic number.

It is an amenable number.

71479538164 is a deficient number, since it is larger than the sum of its proper divisors (62425046636).

71479538164 is a wasteful number, since it uses less digits than its factorization.

71479538164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15941103 (or 15941101 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The spelling of 71479538164 in words is "seventy-one billion, four hundred seventy-nine million, five hundred thirty-eight thousand, one hundred sixty-four".