15912427952 has 80 divisors (see below), whose sum is σ = 33352091520. Its totient is φ = 7330176000.

The previous prime is 15912427897. The next prime is 15912427963. The reversal of 15912427952 is 25972421951.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15912427897 and 15912427906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147827 + ... + 3152877.

It is an arithmetic number, because the mean of its divisors is an integer number (416901144).

Almost surely, 2^15912427952 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 15912427952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16676045760).

15912427952 is an abundant number, since it is smaller than the sum of its proper divisors (17439663568).

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

15912427952 is a wasteful number, since it uses less digits than its factorization.

15912427952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362 (or 5356 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The spelling of 15912427952 in words is "fifteen billion, nine hundred twelve million, four hundred twenty-seven thousand, nine hundred fifty-two".