2077686568 has 16 divisors (see below), whose sum is σ = 3896373780. Its totient is φ = 1038653568.

The previous prime is 2077686547. The next prime is 2077686581. The reversal of 2077686568 is 8656867702.

It can be written as a sum of positive squares in 2 ways, for example, as 2016189604 + 61496964 = 44902^2 + 7842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29980 + ... + 71092.

Almost surely, 2^2077686568 is an apocalyptic number.

It is an amenable number.

2077686568 is a deficient number, since it is larger than the sum of its proper divisors (1818687212).

2077686568 is a wasteful number, since it uses less digits than its factorization.

2077686568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47436 (or 47432 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The square root of 2077686568 is about 45581.6472716816. The cubic root of 2077686568 is about 1276.0274313341.

The spelling of 2077686568 in words is "two billion, seventy-seven million, six hundred eighty-six thousand, five hundred sixty-eight".