15381355032 has 80 divisors (see below), whose sum is σ = 43500497040. Its totient is φ = 5077318464.

The previous prime is 15381355009. The next prime is 15381355039. The reversal of 15381355032 is 23055318351.

15381355032 is a `hidden beast` number, since 15 + 3 + 8 + 135 + 503 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15381355039) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48483 + ... + 181970.

It is an arithmetic number, because the mean of its divisors is an integer number (543756213).

Almost surely, 2^15381355032 is an apocalyptic number.

15381355032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15381355032 is an abundant number, since it is smaller than the sum of its proper divisors (28119142008).

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

15381355032 is a wasteful number, since it uses less digits than its factorization.

15381355032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230574 (or 230561 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 15381355032 in words is "fifteen billion, three hundred eighty-one million, three hundred fifty-five thousand, thirty-two".