15487798032 has 240 divisors, whose sum is σ = 51363891072. Its totient is φ = 4264151040.

The previous prime is 15487798021. The next prime is 15487798033. The reversal of 15487798032 is 23089778451.

It is a happy number.

15487798032 is a `hidden beast` number, since 1 + 548 + 7 + 7 + 98 + 0 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 15487798032.

It is not an unprimeable number, because it can be changed into a prime (15487798033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3988732 + ... + 3992612.

Almost surely, 2^15487798032 is an apocalyptic number.

15487798032 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 15487798032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25681945536).

15487798032 is an abundant number, since it is smaller than the sum of its proper divisors (35876093040).

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

15487798032 is a wasteful number, since it uses less digits than its factorization.

15487798032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 15487798032 in words is "fifteen billion, four hundred eighty-seven million, seven hundred ninety-eight thousand, thirty-two".