13261522450 has 24 divisors (see below), whose sum is σ = 26908835760. Its totient is φ = 4822371600.

The previous prime is 13261522441. The next prime is 13261522487. The reversal of 13261522450 is 5422516231.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12055380 + ... + 12056479.

It is an arithmetic number, because the mean of its divisors is an integer number (1121201490).

Almost surely, 2^13261522450 is an apocalyptic number.

13261522450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13261522450 is an abundant number, since it is smaller than the sum of its proper divisors (13647313310).

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

13261522450 is a wasteful number, since it uses less digits than its factorization.

13261522450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24111882 (or 24111877 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 13261522450 in words is "thirteen billion, two hundred sixty-one million, five hundred twenty-two thousand, four hundred fifty".