7677660816 has 120 divisors (see below), whose sum is σ = 25465911744. Its totient is φ = 2193609600.

The previous prime is 7677660791. The next prime is 7677660827. The reversal of 7677660816 is 6180667767.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113835 + ... + 168266.

Almost surely, 2^7677660816 is an apocalyptic number.

It is an amenable number.

7677660816 is an abundant number, since it is smaller than the sum of its proper divisors (17788250928).

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

7677660816 is a wasteful number, since it uses less digits than its factorization.

7677660816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282131 (or 282113 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 7677660816 is about 87622.2621027328. The cubic root of 7677660816 is about 1972.7693292690.

The spelling of 7677660816 in words is "seven billion, six hundred seventy-seven million, six hundred sixty thousand, eight hundred sixteen".