913143687680 has 80 divisors (see below), whose sum is σ = 2502176814720. Its totient is φ = 313077829632.

The previous prime is 913143687623. The next prime is 913143687727. The reversal of 913143687680 is 86786341319.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 25460420 + ... + 25496259.

It is an arithmetic number, because the mean of its divisors is an integer number (31277210184).

Almost surely, 2^913143687680 is an apocalyptic number.

It is an amenable number.

913143687680 is an abundant number, since it is smaller than the sum of its proper divisors (1589033127040).

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

913143687680 is an equidigital number, since it uses as much as digits as its factorization.

913143687680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50956709 (or 50956693 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 913143687680 in words is "nine hundred thirteen billion, one hundred forty-three million, six hundred eighty-seven thousand, six hundred eighty".