13261522650 has 24 divisors (see below), whose sum is σ = 32888576544. Its totient is φ = 3536406000.

The previous prime is 13261522633. The next prime is 13261522669. The reversal of 13261522650 is 5622516231.

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, 44204926 + ... + 44205225.

It is an arithmetic number, because the mean of its divisors is an integer number (1370357356).

Almost surely, 2^13261522650 is an apocalyptic number.

13261522650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13261522650 is an abundant number, since it is smaller than the sum of its proper divisors (19627053894).

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

13261522650 is a wasteful number, since it uses less digits than its factorization.

13261522650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88410166 (or 88410161 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 13261522650 in words is "thirteen billion, two hundred sixty-one million, five hundred twenty-two thousand, six hundred fifty".