7811232144772 has 48 divisors (see below), whose sum is σ = 15690196851840. Its totient is φ = 3333168340992.

The previous prime is 7811232144763. The next prime is 7811232144817. The reversal of 7811232144772 is 2774412321187.

It is a super-2 number, since 2×7811232144772² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16088523 + ... + 16566925.

It is an arithmetic number, because the mean of its divisors is an integer number (326879101080).

Almost surely, 2^{7811232144772} is an apocalyptic number.

It is an amenable number.

7811232144772 is an abundant number, since it is smaller than the sum of its proper divisors (7878964707068).

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

7811232144772 is a wasteful number, since it uses less digits than its factorization.

7811232144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480940 (or 480938 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 49.

The spelling of 7811232144772 in words is "seven trillion, eight hundred eleven billion, two hundred thirty-two million, one hundred forty-four thousand, seven hundred seventy-two".