15942538752 has 240 divisors, whose sum is σ = 49515164160. Its totient is φ = 4464525312.

The previous prime is 15942538721. The next prime is 15942538789. The reversal of 15942538752 is 25783524951.

It is a junction number, because it is equal to n+sod(n) for n = 15942538695 and 15942538704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116368828 + ... + 116368964.

It is an arithmetic number, because the mean of its divisors is an integer number (206313184).

Almost surely, 2^15942538752 is an apocalyptic number.

15942538752 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 15942538752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24757582080).

15942538752 is an abundant number, since it is smaller than the sum of its proper divisors (33572625408).

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

15942538752 is an frugal number, since it uses more digits than its factorization.

15942538752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 228 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 51.

The spelling of 15942538752 in words is "fifteen billion, nine hundred forty-two million, five hundred thirty-eight thousand, seven hundred fifty-two".