71669712192 has 56 divisors (see below), whose sum is σ = 204212744736. Its totient is φ = 22052218368.

The previous prime is 71669712181. The next prime is 71669712193. The reversal of 71669712192 is 29121796617.

It is a super-2 number, since 2×71669712192² (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 (71669712193) 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, 14354418 + ... + 14359409.

It is an arithmetic number, because the mean of its divisors is an integer number (3646656156).

Almost surely, 2^71669712192 is an apocalyptic number.

It is an amenable number.

71669712192 is an abundant number, since it is smaller than the sum of its proper divisors (132543032544).

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

71669712192 is a wasteful number, since it uses less digits than its factorization.

71669712192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28713855 (or 28713845 counting only the distinct ones).

The product of its digits is 571536, while the sum is 51.

The spelling of 71669712192 in words is "seventy-one billion, six hundred sixty-nine million, seven hundred twelve thousand, one hundred ninety-two".