1578682400225 has 12 divisors (see below), whose sum is σ = 2237218487424. Its totient is φ = 1082525074320.

The previous prime is 1578682400219. The next prime is 1578682400237. The reversal of 1578682400225 is 5220042868751.

It is not a de Polignac number, because 1578682400225 - 2⁴ = 1578682400209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4510520969 + ... + 4510521318.

It is an arithmetic number, because the mean of its divisors is an integer number (186434873952).

Almost surely, 2^{1578682400225} is an apocalyptic number.

It is an amenable number.

1578682400225 is a deficient number, since it is larger than the sum of its proper divisors (658536087199).

1578682400225 is an equidigital number, since it uses as much as digits as its factorization.

1578682400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021042304 (or 9021042299 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 1578682400225 in words is "one trillion, five hundred seventy-eight billion, six hundred eighty-two million, four hundred thousand, two hundred twenty-five".