13520026634 has 4 divisors (see below), whose sum is σ = 20280039954. Its totient is φ = 6760013316.

The previous prime is 13520026613. The next prime is 13520026643. The reversal of 13520026634 is 43662002531.

13520026634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13421917609 + 98109025 = 115853^2 + 9905^2 .

It is a super-2 number, since 2×13520026634² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13520026634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380006657 + ... + 3380006660.

Almost surely, 2^13520026634 is an apocalyptic number.

13520026634 is a deficient number, since it is larger than the sum of its proper divisors (6760013320).

13520026634 is an equidigital number, since it uses as much as digits as its factorization.

13520026634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6760013319.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 13520026634 in words is "thirteen billion, five hundred twenty million, twenty-six thousand, six hundred thirty-four".