13420690507 has 6 divisors (see below), whose sum is σ = 15611823708. Its totient is φ = 11503448964.

The previous prime is 13420690487. The next prime is 13420690559. The reversal of 13420690507 is 70509602431.

It is a de Polignac number, because none of the positive numbers 2^k-13420690507 is a prime.

It is a super-2 number, since 2×13420690507² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13420690607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136945773 + ... + 136945870.

It is an arithmetic number, because the mean of its divisors is an integer number (2601970618).

Almost surely, 2^13420690507 is an apocalyptic number.

13420690507 is a deficient number, since it is larger than the sum of its proper divisors (2191133201).

13420690507 is an equidigital number, since it uses as much as digits as its factorization.

13420690507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273891657 (or 273891650 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 13420690507 in words is "thirteen billion, four hundred twenty million, six hundred ninety thousand, five hundred seven".