7646980964 has 36 divisors (see below), whose sum is σ = 15575205996. Its totient is φ = 3275564544.

The previous prime is 7646980963. The next prime is 7646980967. The reversal of 7646980964 is 4690896467.

It can be written as a sum of positive squares in 2 ways, for example, as 1155456064 + 6491524900 = 33992^2 + 80570^2 .

It is not an unprimeable number, because it can be changed into a prime (7646980961) 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, 409724 + ... + 427980.

It is an arithmetic number, because the mean of its divisors is an integer number (432644611).

Almost surely, 2^7646980964 is an apocalyptic number.

It is an amenable number.

7646980964 is an abundant number, since it is smaller than the sum of its proper divisors (7928225032).

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

7646980964 is a wasteful number, since it uses less digits than its factorization.

7646980964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20412 (or 20403 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 59.

The square root of 7646980964 is about 87447.0180394963. The cubic root of 7646980964 is about 1970.1380995203.

The spelling of 7646980964 in words is "seven billion, six hundred forty-six million, nine hundred eighty thousand, nine hundred sixty-four".