13990035807 has 24 divisors (see below), whose sum is σ = 22172359248. Its totient is φ = 8429788800.

The previous prime is 13990035803. The next prime is 13990035817. The reversal of 13990035807 is 70853009931.

It is a happy number.

It is not a de Polignac number, because 13990035807 - 2² = 13990035803 is a prime.

It is a super-2 number, since 2×13990035807² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13990035803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391294 + ... + 425547.

It is an arithmetic number, because the mean of its divisors is an integer number (923848302).

Almost surely, 2^13990035807 is an apocalyptic number.

13990035807 is a deficient number, since it is larger than the sum of its proper divisors (8182323441).

13990035807 is a wasteful number, since it uses less digits than its factorization.

13990035807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817031 (or 817028 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 13990035807 in words is "thirteen billion, nine hundred ninety million, thirty-five thousand, eight hundred seven".