13813187507 has 8 divisors (see below), whose sum is σ = 15792344832. Its totient is φ = 11835491400.

The previous prime is 13813187501. The next prime is 13813187539. The reversal of 13813187507 is 70578131831.

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

It is a cyclic number.

It is not a de Polignac number, because 13813187507 - 2³² = 9518220211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13813187501) 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, 344969 + ... + 382922.

It is an arithmetic number, because the mean of its divisors is an integer number (1974043104).

Almost surely, 2^13813187507 is an apocalyptic number.

13813187507 is a deficient number, since it is larger than the sum of its proper divisors (1979157325).

13813187507 is an equidigital number, since it uses as much as digits as its factorization.

13813187507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730609.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 13813187507 in words is "thirteen billion, eight hundred thirteen million, one hundred eighty-seven thousand, five hundred seven".