13698645507 has 8 divisors (see below), whose sum is σ = 20294289680. Its totient is φ = 9132430320.

The previous prime is 13698645497. The next prime is 13698645511. The reversal of 13698645507 is 70554689631.

13698645507 is a `hidden beast` number, since 1 + 3 + 6 + 9 + 86 + 4 + 550 + 7 = 666.

It is not a de Polignac number, because 13698645507 - 2⁷ = 13698645379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13698645607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253678594 + ... + 253678647.

It is an arithmetic number, because the mean of its divisors is an integer number (2536786210).

Almost surely, 2^13698645507 is an apocalyptic number.

13698645507 is a deficient number, since it is larger than the sum of its proper divisors (6595644173).

13698645507 is an equidigital number, since it uses as much as digits as its factorization.

13698645507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507357250 (or 507357244 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 13698645507 in words is "thirteen billion, six hundred ninety-eight million, six hundred forty-five thousand, five hundred seven".