766792638 has 12 divisors (see below), whose sum is σ = 1661384088. Its totient is φ = 255597540.

The previous prime is 766792597. The next prime is 766792643. The reversal of 766792638 is 836297667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21299778 + ... + 21299813.

It is an arithmetic number, because the mean of its divisors is an integer number (138448674).

Almost surely, 2^766792638 is an apocalyptic number.

766792638 is an abundant number, since it is smaller than the sum of its proper divisors (894591450).

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

766792638 is a wasteful number, since it uses less digits than its factorization.

766792638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42599599 (or 42599596 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 766792638 is about 27691.0208912564. The cubic root of 766792638 is about 915.2912519029.

The spelling of 766792638 in words is "seven hundred sixty-six million, seven hundred ninety-two thousand, six hundred thirty-eight".