315199461540 has 24 divisors (see below), whose sum is σ = 882558492480. Its totient is φ = 84053189728.

The previous prime is 315199461527. The next prime is 315199461547. The reversal of 315199461540 is 45164991513.

It is a self number, because there is not a number n which added to its sum of digits gives 315199461540.

It is not an unprimeable number, because it can be changed into a prime (315199461547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626662120 + ... + 2626662239.

It is an arithmetic number, because the mean of its divisors is an integer number (36773270520).

Almost surely, 2^315199461540 is an apocalyptic number.

315199461540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315199461540 is an abundant number, since it is smaller than the sum of its proper divisors (567359030940).

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

315199461540 is a wasteful number, since it uses less digits than its factorization.

315199461540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253324371 (or 5253324369 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 315199461540 in words is "three hundred fifteen billion, one hundred ninety-nine million, four hundred sixty-one thousand, five hundred forty".