766878770 has 32 divisors (see below), whose sum is σ = 1614273408. Its totient is φ = 256814208.

The previous prime is 766878769. The next prime is 766878773. The reversal of 766878770 is 77878667.

766878770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (766878773) 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, 124379 + ... + 130398.

It is an arithmetic number, because the mean of its divisors is an integer number (50446044).

Almost surely, 2^766878770 is an apocalyptic number.

766878770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

766878770 is an abundant number, since it is smaller than the sum of its proper divisors (847394638).

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

766878770 is a wasteful number, since it uses less digits than its factorization.

766878770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254834.

The product of its (nonzero) digits is 5531904, while the sum is 56.

The square root of 766878770 is about 27692.5760809644. The cubic root of 766878770 is about 915.3255214523.

The spelling of 766878770 in words is "seven hundred sixty-six million, eight hundred seventy-eight thousand, seven hundred seventy".