785057727879 has 12 divisors (see below), whose sum is σ = 1134147651000. Its totient is φ = 523290875184.

The previous prime is 785057727871. The next prime is 785057727889. The reversal of 785057727879 is 978727750587.

It is not a de Polignac number, because 785057727879 - 2³ = 785057727871 is a prime.

It is a super-2 number, since 2×785057727879² (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 (785057727871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6683829 + ... + 6800270.

It is an arithmetic number, because the mean of its divisors is an integer number (94512304250).

Almost surely, 2^785057727879 is an apocalyptic number.

785057727879 is a deficient number, since it is larger than the sum of its proper divisors (349089923121).

785057727879 is a wasteful number, since it uses less digits than its factorization.

785057727879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490574 (or 13490571 counting only the distinct ones).

The product of its (nonzero) digits is 484041600, while the sum is 72.

The spelling of 785057727879 in words is "seven hundred eighty-five billion, fifty-seven million, seven hundred twenty-seven thousand, eight hundred seventy-nine".