768136902 has 32 divisors (see below), whose sum is σ = 1741528320. Its totient is φ = 223909920.

The previous prime is 768136877. The next prime is 768136903. The reversal of 768136902 is 209631867.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768136903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257674 + ... + 260637.

It is an arithmetic number, because the mean of its divisors is an integer number (54422760).

Almost surely, 2^768136902 is an apocalyptic number.

768136902 is an abundant number, since it is smaller than the sum of its proper divisors (973391418).

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

768136902 is a wasteful number, since it uses less digits than its factorization.

768136902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518348.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 768136902 is about 27715.2828237418. The cubic root of 768136902 is about 915.8258052782.

The spelling of 768136902 in words is "seven hundred sixty-eight million, one hundred thirty-six thousand, nine hundred two".