7667879864 has 8 divisors (see below), whose sum is σ = 14377274760. Its totient is φ = 3833939928.

The previous prime is 7667879833. The next prime is 7667879897. The reversal of 7667879864 is 4689787667.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7667879794 and 7667879803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479242484 + ... + 479242499.

It is an arithmetic number, because the mean of its divisors is an integer number (1797159345).

Almost surely, 2^7667879864 is an apocalyptic number.

It is an amenable number.

7667879864 is a deficient number, since it is larger than the sum of its proper divisors (6709394896).

7667879864 is a wasteful number, since it uses less digits than its factorization.

7667879864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958484989 (or 958484985 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 68.

The square root of 7667879864 is about 87566.4311480147. The cubic root of 7667879864 is about 1971.9312371192.

The spelling of 7667879864 in words is "seven billion, six hundred sixty-seven million, eight hundred seventy-nine thousand, eight hundred sixty-four".