13613521602 has 16 divisors (see below), whose sum is σ = 27230264352. Its totient is φ = 4537303680.

The previous prime is 13613521573. The next prime is 13613521609. The reversal of 13613521602 is 20612531631.

It is a self number, because there is not a number n which added to its sum of digits gives 13613521602.

It is not an unprimeable number, because it can be changed into a prime (13613521609) 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 7 ways as a sum of consecutive naturals, for example, 77424 + ... + 182267.

It is an arithmetic number, because the mean of its divisors is an integer number (1701891522).

Almost surely, 2^13613521602 is an apocalyptic number.

13613521602 is an abundant number, since it is smaller than the sum of its proper divisors (13616742750).

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

13613521602 is a wasteful number, since it uses less digits than its factorization.

13613521602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268433.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 13613521602 in words is "thirteen billion, six hundred thirteen million, five hundred twenty-one thousand, six hundred two".