72206733523812 has 24 divisors (see below), whose sum is σ = 170118129470016. Its totient is φ = 23835232424928.

The previous prime is 72206733523777. The next prime is 72206733523849. The reversal of 72206733523812 is 21832533760227.

It is a super-2 number, since 2×72206733523812² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29209842423 + ... + 29209844894.

It is an arithmetic number, because the mean of its divisors is an integer number (7088255394584).

Almost surely, 2^{72206733523812} is an apocalyptic number.

It is an amenable number.

72206733523812 is an abundant number, since it is smaller than the sum of its proper divisors (97911395946204).

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

72206733523812 is a wasteful number, since it uses less digits than its factorization.

72206733523812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58419687427 (or 58419687425 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 72206733523812 in words is "seventy-two trillion, two hundred six billion, seven hundred thirty-three million, five hundred twenty-three thousand, eight hundred twelve".