7678987676 has 48 divisors (see below), whose sum is σ = 13900517568. Its totient is φ = 3710246400.

The previous prime is 7678987661. The next prime is 7678987697. The reversal of 7678987676 is 6767898767.

7678987676 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3585566 + ... + 3587706.

It is an arithmetic number, because the mean of its divisors is an integer number (289594116).

Almost surely, 2^7678987676 is an apocalyptic number.

It is an amenable number.

7678987676 is a deficient number, since it is larger than the sum of its proper divisors (6221529892).

7678987676 is a wasteful number, since it uses less digits than its factorization.

7678987676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2460 counting only the distinct ones).

The product of its digits is 298722816, while the sum is 71.

The square root of 7678987676 is about 87629.8332532934. The cubic root of 7678987676 is about 1972.8829679583.

The spelling of 7678987676 in words is "seven billion, six hundred seventy-eight million, nine hundred eighty-seven thousand, six hundred seventy-six".