785315013 has 48 divisors (see below), whose sum is σ = 1276508160. Its totient is φ = 427383264.

The previous prime is 785315009. The next prime is 785315021. The reversal of 785315013 is 310513587.

It is not a de Polignac number, because 785315013 - 2² = 785315009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785315053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1213456 + ... + 1214102.

It is an arithmetic number, because the mean of its divisors is an integer number (26593920).

Almost surely, 2^785315013 is an apocalyptic number.

It is an amenable number.

785315013 is a deficient number, since it is larger than the sum of its proper divisors (491193147).

785315013 is a wasteful number, since it uses less digits than its factorization.

785315013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 785315013 is about 28023.4725364292. The cubic root of 785315013 is about 922.6025132660.

The spelling of 785315013 in words is "seven hundred eighty-five million, three hundred fifteen thousand, thirteen".