771486868 has 24 divisors (see below), whose sum is σ = 1447981920. Its totient is φ = 358544160.

The previous prime is 771486851. The next prime is 771486871. The reversal of 771486868 is 868684177.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91738 + ... + 99793.

It is an arithmetic number, because the mean of its divisors is an integer number (60332580).

Almost surely, 2^771486868 is an apocalyptic number.

It is an amenable number.

771486868 is a deficient number, since it is larger than the sum of its proper divisors (676495052).

771486868 is a wasteful number, since it uses less digits than its factorization.

771486868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191607 (or 191605 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The square root of 771486868 is about 27775.6524315812. The cubic root of 771486868 is about 917.1552280617.

The spelling of 771486868 in words is "seven hundred seventy-one million, four hundred eighty-six thousand, eight hundred sixty-eight".