772939567491 has 32 divisors (see below), whose sum is σ = 1269451330560. Its totient is φ = 407370847104.

The previous prime is 772939567481. The next prime is 772939567501. The reversal of 772939567491 is 194765939277.

It is an interprime number because it is at equal distance from previous prime (772939567481) and next prime (772939567501).

It is not a de Polignac number, because 772939567491 - 2¹⁵ = 772939534723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (772939567481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823636 + ... + 1491393.

It is an arithmetic number, because the mean of its divisors is an integer number (39670354080).

Almost surely, 2^772939567491 is an apocalyptic number.

772939567491 is a deficient number, since it is larger than the sum of its proper divisors (496511763069).

772939567491 is a wasteful number, since it uses less digits than its factorization.

772939567491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316275.

The product of its digits is 180033840, while the sum is 69.

The spelling of 772939567491 in words is "seven hundred seventy-two billion, nine hundred thirty-nine million, five hundred sixty-seven thousand, four hundred ninety-one".