13390000785 has 256 divisors, whose sum is σ = 30569011200. Its totient is φ = 5419008000.

The previous prime is 13390000769. The next prime is 13390000801. The reversal of 13390000785 is 58700009331.

It is an interprime number because it is at equal distance from previous prime (13390000769) and next prime (13390000801).

It is not a de Polignac number, because 13390000785 - 2⁴ = 13390000769 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 19100935 + ... + 19101635.

It is an arithmetic number, because the mean of its divisors is an integer number (119410200).

Almost surely, 2^13390000785 is an apocalyptic number.

13390000785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13390000785 is the 73185-th heptagonal number.

It is an amenable number.

13390000785 is an abundant number, since it is smaller than the sum of its proper divisors (17179010415).

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

13390000785 is a wasteful number, since it uses less digits than its factorization.

13390000785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 13390000785 in words is "thirteen billion, three hundred ninety million, seven hundred eighty-five", and thus it is an aban number.