73912831272 has 96 divisors (see below), whose sum is σ = 233446824000. Its totient is φ = 21117944736.

The previous prime is 73912831271. The next prime is 73912831273. The reversal of 73912831272 is 27213821937.

It is an interprime number because it is at equal distance from previous prime (73912831271) and next prime (73912831273).

It is a super-2 number, since 2×73912831272² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (73912831271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471758 + ... + 1521149.

It is an arithmetic number, because the mean of its divisors is an integer number (2431737750).

Almost surely, 2^73912831272 is an apocalyptic number.

73912831272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73912831272 is an abundant number, since it is smaller than the sum of its proper divisors (159533992728).

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

73912831272 is a wasteful number, since it uses less digits than its factorization.

73912831272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992940 (or 2992919 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The spelling of 73912831272 in words is "seventy-three billion, nine hundred twelve million, eight hundred thirty-one thousand, two hundred seventy-two".