7772713261138 has 16 divisors (see below), whose sum is σ = 13325988420864. Its totient is φ = 3330828547200.

The previous prime is 7772713261127. The next prime is 7772713261169. The reversal of 7772713261138 is 8311623172777.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27712063 + ... + 27991138.

It is an arithmetic number, because the mean of its divisors is an integer number (832874276304).

Almost surely, 2^{7772713261138} is an apocalyptic number.

7772713261138 is a deficient number, since it is larger than the sum of its proper divisors (5553275159726).

7772713261138 is a wasteful number, since it uses less digits than its factorization.

7772713261138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55713177.

The product of its digits is 4148928, while the sum is 55.

The spelling of 7772713261138 in words is "seven trillion, seven hundred seventy-two billion, seven hundred thirteen million, two hundred sixty-one thousand, one hundred thirty-eight".