71979374112 has 48 divisors (see below), whose sum is σ = 188960692032. Its totient is φ = 23991240960.

The previous prime is 71979374111. The next prime is 71979374123. The reversal of 71979374112 is 21147397917.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (71979374111) 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, 1769037 + ... + 1809267.

It is an arithmetic number, because the mean of its divisors is an integer number (3936681084).

Almost surely, 2^71979374112 is an apocalyptic number.

It is an amenable number.

71979374112 is an abundant number, since it is smaller than the sum of its proper divisors (116981317920).

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

71979374112 is a wasteful number, since it uses less digits than its factorization.

71979374112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58881 (or 58873 counting only the distinct ones).

The product of its digits is 666792, while the sum is 51.

The spelling of 71979374112 in words is "seventy-one billion, nine hundred seventy-nine million, three hundred seventy-four thousand, one hundred twelve".