771971860312 has 16 divisors (see below), whose sum is σ = 1447541016840. Its totient is φ = 385960922496.

The previous prime is 771971860307. The next prime is 771971860357. The reversal of 771971860312 is 213068179177.

It is a super-2 number, since 2×771971860312² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 771971860312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2994438 + ... + 3242005.

Almost surely, 2^771971860312 is an apocalyptic number.

It is an amenable number.

771971860312 is a deficient number, since it is larger than the sum of its proper divisors (675569156528).

771971860312 is a wasteful number, since it uses less digits than its factorization.

771971860312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251922 (or 6251918 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 52.

The spelling of 771971860312 in words is "seven hundred seventy-one billion, nine hundred seventy-one million, eight hundred sixty thousand, three hundred twelve".