782257996799 has 24 divisors (see below), whose sum is σ = 817090129440. Its totient is φ = 748814215680.

The previous prime is 782257996789. The next prime is 782257996829. The reversal of 782257996799 is 997699752287.

It is not a de Polignac number, because 782257996799 - 2²⁰ = 782256948223 is a prime.

It is a super-2 number, since 2×782257996799² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782257996789) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 96702347 + ... + 96710435.

It is an arithmetic number, because the mean of its divisors is an integer number (34045422060).

Almost surely, 2^782257996799 is an apocalyptic number.

782257996799 is a deficient number, since it is larger than the sum of its proper divisors (34832132641).

782257996799 is a wasteful number, since it uses less digits than its factorization.

782257996799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231 (or 9200 counting only the distinct ones).

The product of its digits is 2160406080, while the sum is 80.

The spelling of 782257996799 in words is "seven hundred eighty-two billion, two hundred fifty-seven million, nine hundred ninety-six thousand, seven hundred ninety-nine".