13602145820 has 24 divisors (see below), whose sum is σ = 28669921728. Its totient is φ = 5420779200.

The previous prime is 13602145813. The next prime is 13602145829. The reversal of 13602145820 is 2854120631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13602145829) 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, 1249391 + ... + 1260230.

It is an arithmetic number, because the mean of its divisors is an integer number (1194580072).

Almost surely, 2^13602145820 is an apocalyptic number.

13602145820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13602145820 is an abundant number, since it is smaller than the sum of its proper divisors (15067775908).

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

13602145820 is a wasteful number, since it uses less digits than its factorization.

13602145820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509901 (or 2509899 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 13602145820 in words is "thirteen billion, six hundred two million, one hundred forty-five thousand, eight hundred twenty".