771791681112 has 32 divisors (see below), whose sum is σ = 1931664396480. Its totient is φ = 256972534560.

The previous prime is 771791681027. The next prime is 771791681113. The reversal of 771791681112 is 211186197177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771791681113) 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, 18188314 + ... + 18230697.

It is an arithmetic number, because the mean of its divisors is an integer number (60364512390).

Almost surely, 2^771791681112 is an apocalyptic number.

It is an amenable number.

771791681112 is an abundant number, since it is smaller than the sum of its proper divisors (1159872715368).

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

771791681112 is a wasteful number, since it uses less digits than its factorization.

771791681112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36419903 (or 36419899 counting only the distinct ones).

The product of its digits is 296352, while the sum is 51.

The spelling of 771791681112 in words is "seven hundred seventy-one billion, seven hundred ninety-one million, six hundred eighty-one thousand, one hundred twelve".