13898659507 has 8 divisors (see below), whose sum is σ = 14072803920. Its totient is φ = 13724674560.

The previous prime is 13898659501. The next prime is 13898659513. The reversal of 13898659507 is 70595689831.

It is an interprime number because it is at equal distance from previous prime (13898659501) and next prime (13898659513).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13898659507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13898659501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140619 + ... + 218107.

It is an arithmetic number, because the mean of its divisors is an integer number (1759100490).

Almost surely, 2^13898659507 is an apocalyptic number.

13898659507 is a deficient number, since it is larger than the sum of its proper divisors (174144413).

13898659507 is an equidigital number, since it uses as much as digits as its factorization.

13898659507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79733.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 13898659507 in words is "thirteen billion, eight hundred ninety-eight million, six hundred fifty-nine thousand, five hundred seven".