785439874163 has 24 divisors (see below), whose sum is σ = 980672953392. Its totient is φ = 624952226304.

The previous prime is 785439874127. The next prime is 785439874183. The reversal of 785439874163 is 361478934587.

It is not a de Polignac number, because 785439874163 - 2¹⁶ = 785439808627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 785439874163.

It is not an unprimeable number, because it can be changed into a prime (785439874183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6397445 + ... + 6519062.

It is an arithmetic number, because the mean of its divisors is an integer number (40861373058).

Almost surely, 2^785439874163 is an apocalyptic number.

785439874163 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

785439874163 is a deficient number, since it is larger than the sum of its proper divisors (195233079229).

785439874163 is a wasteful number, since it uses less digits than its factorization.

785439874163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916611 (or 12916604 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 65.

The spelling of 785439874163 in words is "seven hundred eighty-five billion, four hundred thirty-nine million, eight hundred seventy-four thousand, one hundred sixty-three".