772145404791 has 16 divisors (see below), whose sum is σ = 1054786760160. Its totient is φ = 502137377280.

The previous prime is 772145404753. The next prime is 772145404801. The reversal of 772145404791 is 197404541277.

It is not a de Polignac number, because 772145404791 - 2⁶ = 772145404727 is a prime.

It is a super-2 number, since 2×772145404791² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772145404721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436581 + ... + 1317153.

It is an arithmetic number, because the mean of its divisors is an integer number (65924172510).

Almost surely, 2^772145404791 is an apocalyptic number.

772145404791 is a deficient number, since it is larger than the sum of its proper divisors (282641355369).

772145404791 is a wasteful number, since it uses less digits than its factorization.

772145404791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887746.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 772145404791 in words is "seven hundred seventy-two billion, one hundred forty-five million, four hundred four thousand, seven hundred ninety-one".