12590378936778 has 32 divisors (see below), whose sum is σ = 25556885383680. Its totient is φ = 4134106508400.

The previous prime is 12590378936771. The next prime is 12590378936819. The reversal of 12590378936778 is 87763987309521.

12590378936778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12590378936771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57472753 + ... + 57691403.

It is an arithmetic number, because the mean of its divisors is an integer number (798652668240).

Almost surely, 2^{12590378936778} is an apocalyptic number.

12590378936778 is an abundant number, since it is smaller than the sum of its proper divisors (12966506446902).

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

12590378936778 is a wasteful number, since it uses less digits than its factorization.

12590378936778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361962.

The product of its (nonzero) digits is 960180480, while the sum is 75.

The spelling of 12590378936778 in words is "twelve trillion, five hundred ninety billion, three hundred seventy-eight million, nine hundred thirty-six thousand, seven hundred seventy-eight".