25878163334401 has 32 divisors (see below), whose sum is σ = 29749472121600. Its totient is φ = 22050883362816.

The previous prime is 25878163334381. The next prime is 25878163334437. The reversal of 25878163334401 is 10443336187852.

It is not a de Polignac number, because 25878163334401 - 2⁷ = 25878163334273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25878163331401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3698462035 + ... + 3698469031.

It is an arithmetic number, because the mean of its divisors is an integer number (929671003800).

Almost surely, 2^{25878163334401} is an apocalyptic number.

It is an amenable number.

25878163334401 is a deficient number, since it is larger than the sum of its proper divisors (3871308787199).

25878163334401 is a wasteful number, since it uses less digits than its factorization.

25878163334401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11593.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 25878163334401 in words is "twenty-five trillion, eight hundred seventy-eight billion, one hundred sixty-three million, three hundred thirty-four thousand, four hundred one".