7659461640 has 64 divisors (see below), whose sum is σ = 24187780800. Its totient is φ = 1935021312.

The previous prime is 7659461629. The next prime is 7659461657. The reversal of 7659461640 is 461649567.

It is a super-2 number, since 2×7659461640² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7659461640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1677427 + ... + 1681986.

It is an arithmetic number, because the mean of its divisors is an integer number (377934075).

Almost surely, 2^7659461640 is an apocalyptic number.

It is an amenable number.

7659461640 is an abundant number, since it is smaller than the sum of its proper divisors (16528319160).

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

7659461640 is a wasteful number, since it uses less digits than its factorization.

7659461640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359446 (or 3359442 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 7659461640 is about 87518.3503043790. The cubic root of 7659461640 is about 1971.2093410311.

The spelling of 7659461640 in words is "seven billion, six hundred fifty-nine million, four hundred sixty-one thousand, six hundred forty".