1213593871872 has 80 divisors (see below), whose sum is σ = 3423271758192. Its totient is φ = 380735324160.

The previous prime is 1213593871871. The next prime is 1213593871877. The reversal of 1213593871872 is 2781783953121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213593871871) 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, 23212129 + ... + 23264352.

Almost surely, 2^{1213593871872} is an apocalyptic number.

1213593871872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213593871872 is an abundant number, since it is smaller than the sum of its proper divisors (2209677886320).

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

1213593871872 is an equidigital number, since it uses as much as digits as its factorization.

1213593871872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46476519 (or 46476503 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The spelling of 1213593871872 in words is "one trillion, two hundred thirteen billion, five hundred ninety-three million, eight hundred seventy-one thousand, eight hundred seventy-two".