7746663980 has 48 divisors (see below), whose sum is σ = 17821278720. Its totient is φ = 2805163200.

The previous prime is 7746663973. The next prime is 7746664031. The reversal of 7746663980 is 893666477.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21086 + ... + 126245.

It is an arithmetic number, because the mean of its divisors is an integer number (371276640).

Almost surely, 2^7746663980 is an apocalyptic number.

It is an amenable number.

7746663980 is an abundant number, since it is smaller than the sum of its proper divisors (10074614740).

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

7746663980 is a wasteful number, since it uses less digits than its factorization.

7746663980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147590 (or 147588 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 56.

The square root of 7746663980 is about 88015.1349484849. The cubic root of 7746663980 is about 1978.6618155813.

The spelling of 7746663980 in words is "seven billion, seven hundred forty-six million, six hundred sixty-three thousand, nine hundred eighty".