7631997018464 has 48 divisors (see below), whose sum is σ = 18492915859488. Its totient is φ = 3019251566592.

The previous prime is 7631997018439. The next prime is 7631997018467. The reversal of 7631997018464 is 4648107991367.

It is a super-3 number, since 3×7631997018464³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7631997018464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7631997018467) 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, 1310436137 + ... + 1310441960.

It is an arithmetic number, because the mean of its divisors is an integer number (385269080406).

Almost surely, 2^{7631997018464} is an apocalyptic number.

It is an amenable number.

7631997018464 is an abundant number, since it is smaller than the sum of its proper divisors (10860918841024).

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

7631997018464 is a wasteful number, since it uses less digits than its factorization.

7631997018464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620878127 (or 2620878119 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 7631997018464 in words is "seven trillion, six hundred thirty-one billion, nine hundred ninety-seven million, eighteen thousand, four hundred sixty-four".