25878862515234 has 16 divisors (see below), whose sum is σ = 51757802964000. Its totient is φ = 8626274516160.

The previous prime is 25878862515227. The next prime is 25878862515271. The reversal of 25878862515234 is 43251526887852.

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, 1634017 + ... + 7377515.

It is an arithmetic number, because the mean of its divisors is an integer number (3234862685250).

Almost surely, 2^{25878862515234} is an apocalyptic number.

25878862515234 is an abundant number, since it is smaller than the sum of its proper divisors (25878940448766).

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

25878862515234 is a wasteful number, since it uses less digits than its factorization.

25878862515234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494465.

The product of its digits is 258048000, while the sum is 66.

The spelling of 25878862515234 in words is "twenty-five trillion, eight hundred seventy-eight billion, eight hundred sixty-two million, five hundred fifteen thousand, two hundred thirty-four".