785439874164 has 24 divisors (see below), whose sum is σ = 1999301498208. Its totient is φ = 238012083040.

The previous prime is 785439874127. The next prime is 785439874183. The reversal of 785439874164 is 461478934587.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 785439874095 and 785439874104.

It is a congruent number.

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, 2975150907 + ... + 2975151170.

It is an arithmetic number, because the mean of its divisors is an integer number (83304229092).

Almost surely, 2^785439874164 is an apocalyptic number.

It is an amenable number.

785439874164 is an abundant number, since it is smaller than the sum of its proper divisors (1213861624044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

785439874164 is a wasteful number, since it uses less digits than its factorization.

785439874164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950302095 (or 5950302093 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 785439874164 in words is "seven hundred eighty-five billion, four hundred thirty-nine million, eight hundred seventy-four thousand, one hundred sixty-four".