15243343452 has 96 divisors (see below), whose sum is σ = 40225973760. Its totient is φ = 4990896000.

The previous prime is 15243343441. The next prime is 15243343519. The reversal of 15243343452 is 25434334251.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1975033 + ... + 1982735.

It is an arithmetic number, because the mean of its divisors is an integer number (419020560).

Almost surely, 2^15243343452 is an apocalyptic number.

15243343452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15243343452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20112986880).

15243343452 is an abundant number, since it is smaller than the sum of its proper divisors (24982630308).

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

15243343452 is a wasteful number, since it uses less digits than its factorization.

15243343452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040 (or 8032 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The spelling of 15243343452 in words is "fifteen billion, two hundred forty-three million, three hundred forty-three thousand, four hundred fifty-two".