13698420645 has 96 divisors (see below), whose sum is σ = 28199864448. Its totient is φ = 5624059392.

The previous prime is 13698420629. The next prime is 13698420649. The reversal of 13698420645 is 54602489631.

It is not a de Polignac number, because 13698420645 - 2⁴ = 13698420629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13698420594 and 13698420603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13698420649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 334162 + ... + 372908.

It is an arithmetic number, because the mean of its divisors is an integer number (293748588).

Almost surely, 2^13698420645 is an apocalyptic number.

13698420645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13698420645 is an abundant number, since it is smaller than the sum of its proper divisors (14501443803).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13698420645 is a wasteful number, since it uses less digits than its factorization.

13698420645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38819 (or 38812 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 13698420645 in words is "thirteen billion, six hundred ninety-eight million, four hundred twenty thousand, six hundred forty-five".