315780047532 has 108 divisors (see below), whose sum is σ = 856195986520. Its totient is φ = 100640667600.

The previous prime is 315780047441. The next prime is 315780047567. The reversal of 315780047532 is 235740087513.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

315780047532 is a `hidden beast` number, since 3 + 1 + 5 + 78 + 0 + 0 + 47 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134316157 + ... + 134318507.

Almost surely, 2^315780047532 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 315780047532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428097993260).

315780047532 is an abundant number, since it is smaller than the sum of its proper divisors (540415938988).

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

315780047532 is an equidigital number, since it uses as much as digits as its factorization.

315780047532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 315780047532 in words is "three hundred fifteen billion, seven hundred eighty million, forty-seven thousand, five hundred thirty-two".