76648613680 has 20 divisors (see below), whose sum is σ = 178208026992. Its totient is φ = 30659445440.

The previous prime is 76648613641. The next prime is 76648613689. The reversal of 76648613680 is 8631684667.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (76648613689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479053756 + ... + 479053915.

Almost surely, 2^76648613680 is an apocalyptic number.

It is an amenable number.

76648613680 is an abundant number, since it is smaller than the sum of its proper divisors (101559413312).

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

76648613680 is a wasteful number, since it uses less digits than its factorization.

76648613680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958107684 (or 958107678 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 76648613680 in words is "seventy-six billion, six hundred forty-eight million, six hundred thirteen thousand, six hundred eighty".