767855868 has 48 divisors (see below), whose sum is σ = 1933833216. Its totient is φ = 235730880.

The previous prime is 767855821. The next prime is 767855899. The reversal of 767855868 is 868558767.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66913 + ... + 77543.

It is an arithmetic number, because the mean of its divisors is an integer number (40288192).

Almost surely, 2^767855868 is an apocalyptic number.

767855868 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

767855868 is an abundant number, since it is smaller than the sum of its proper divisors (1165977348).

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

767855868 is a wasteful number, since it uses less digits than its factorization.

767855868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11114 (or 11112 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 60.

The square root of 767855868 is about 27710.2123413012. The cubic root of 767855868 is about 915.7141022803.

It can be divided in two parts, 7678 and 55868, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 767855868 in words is "seven hundred sixty-seven million, eight hundred fifty-five thousand, eight hundred sixty-eight".