74631763831 has 12 divisors (see below), whose sum is σ = 78708189168. Its totient is φ = 70755105344.

The previous prime is 74631763807. The next prime is 74631763837. The reversal of 74631763831 is 13836713647.

It is a de Polignac number, because none of the positive numbers 2^k-74631763831 is a prime.

It is a super-2 number, since 2×74631763831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74631763837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564475 + ... + 684028.

It is an arithmetic number, because the mean of its divisors is an integer number (6559015764).

Almost surely, 2^74631763831 is an apocalyptic number.

74631763831 is a deficient number, since it is larger than the sum of its proper divisors (4076425337).

74631763831 is a wasteful number, since it uses less digits than its factorization.

74631763831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248662 (or 1248639 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 49.

The spelling of 74631763831 in words is "seventy-four billion, six hundred thirty-one million, seven hundred sixty-three thousand, eight hundred thirty-one".