13251332581950 has 48 divisors (see below), whose sum is σ = 33164803053360. Its totient is φ = 3501269521920.

The previous prime is 13251332581901. The next prime is 13251332581951. The reversal of 13251332581950 is 5918523315231.

It is a self number, because there is not a number n which added to its sum of digits gives 13251332581950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13251332581951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405223179 + ... + 405255878.

It is an arithmetic number, because the mean of its divisors is an integer number (690933396945).

Almost surely, 2^{13251332581950} is an apocalyptic number.

13251332581950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13251332581950 is an abundant number, since it is smaller than the sum of its proper divisors (19913470471410).

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

13251332581950 is a wasteful number, since it uses less digits than its factorization.

13251332581950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810479181 (or 810479176 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 13251332581950 in words is "thirteen trillion, two hundred fifty-one billion, three hundred thirty-two million, five hundred eighty-one thousand, nine hundred fifty".