1315820808480 has 48 divisors (see below), whose sum is σ = 4144835548224. Its totient is φ = 350885548800.

The previous prime is 1315820808473. The next prime is 1315820808503. The reversal of 1315820808480 is 848080285131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370646196 + ... + 1370647155.

It is an arithmetic number, because the mean of its divisors is an integer number (86350740588).

Almost surely, 2^{1315820808480} is an apocalyptic number.

1315820808480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315820808480 is an abundant number, since it is smaller than the sum of its proper divisors (2829014739744).

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

1315820808480 is a wasteful number, since it uses less digits than its factorization.

1315820808480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741293369 (or 2741293361 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 1315820808480 in words is "one trillion, three hundred fifteen billion, eight hundred twenty million, eight hundred eight thousand, four hundred eighty".