785494707986 has 16 divisors (see below), whose sum is σ = 1268002068120. Its totient is φ = 363584820480.

The previous prime is 785494707971. The next prime is 785494708051. The reversal of 785494707986 is 689707494587.

It can be written as a sum of positive squares in 4 ways, for example, as 662626932361 + 122867775625 = 814019^2 + 350525^2 .

It is a super-2 number, since 2×785494707986² (a number of 25 digits) contains 22 as substring.

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, 189365021 + ... + 189369168.

Almost surely, 2^785494707986 is an apocalyptic number.

785494707986 is a deficient number, since it is larger than the sum of its proper divisors (482507360134).

785494707986 is a wasteful number, since it uses less digits than its factorization.

785494707986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378734269.

The product of its (nonzero) digits is 853493760, while the sum is 74.

The spelling of 785494707986 in words is "seven hundred eighty-five billion, four hundred ninety-four million, seven hundred seven thousand, nine hundred eighty-six".