766878788 has 24 divisors (see below), whose sum is σ = 1508111808. Its totient is φ = 338554656.

The previous prime is 766878787. The next prime is 766878803. The reversal of 766878788 is 887878667.

It is not an unprimeable number, because it can be changed into a prime (766878787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319406 + ... + 321797.

It is an arithmetic number, because the mean of its divisors is an integer number (62837992).

Almost surely, 2^766878788 is an apocalyptic number.

It is an amenable number.

766878788 is a deficient number, since it is larger than the sum of its proper divisors (741233020).

766878788 is a wasteful number, since it uses less digits than its factorization.

766878788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641243 (or 641241 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 65.

The square root of 766878788 is about 27692.5764059612. The cubic root of 766878788 is about 915.3255286137.

The spelling of 766878788 in words is "seven hundred sixty-six million, eight hundred seventy-eight thousand, seven hundred eighty-eight".