15509008782652 has 96 divisors (see below), whose sum is σ = 34936369606656. Its totient is φ = 5846382489600.

The previous prime is 15509008782601. The next prime is 15509008782661. The reversal of 15509008782652 is 25628780090551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48315228 + ... + 48635164.

It is an arithmetic number, because the mean of its divisors is an integer number (363920516736).

Almost surely, 2^{15509008782652} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15509008782652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17468184803328).

15509008782652 is an abundant number, since it is smaller than the sum of its proper divisors (19427360824004).

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

15509008782652 is a wasteful number, since it uses less digits than its factorization.

15509008782652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325067 (or 325065 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 58.

The spelling of 15509008782652 in words is "fifteen trillion, five hundred nine billion, eight million, seven hundred eighty-two thousand, six hundred fifty-two".