7640617662 has 24 divisors (see below), whose sum is σ = 16715400624. Its totient is φ = 2522145024.

The previous prime is 7640617661. The next prime is 7640617681. The reversal of 7640617662 is 2667160467.

It is a happy number.

7640617662 is a `hidden beast` number, since 76 + 406 + 176 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640617661) 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, 2058723 + ... + 2062430.

It is an arithmetic number, because the mean of its divisors is an integer number (696475026).

Almost surely, 2^7640617662 is an apocalyptic number.

7640617662 is an abundant number, since it is smaller than the sum of its proper divisors (9074782962).

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

7640617662 is a wasteful number, since it uses less digits than its factorization.

7640617662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121264 (or 4121261 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 7640617662 is about 87410.6267109440. The cubic root of 7640617662 is about 1969.5914758378.

The spelling of 7640617662 in words is "seven billion, six hundred forty million, six hundred seventeen thousand, six hundred sixty-two".