25405513612134 has 64 divisors (see below), whose sum is σ = 51682798526400. Its totient is φ = 8324467200000.

The previous prime is 25405513612099. The next prime is 25405513612153. The reversal of 25405513612134 is 43121631550452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195060234 + ... + 195190434.

It is an arithmetic number, because the mean of its divisors is an integer number (807543726975).

Almost surely, 2^{25405513612134} is an apocalyptic number.

25405513612134 is an abundant number, since it is smaller than the sum of its proper divisors (26277284914266).

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

25405513612134 is a wasteful number, since it uses less digits than its factorization.

25405513612134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132617.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 25405513612134 in words is "twenty-five trillion, four hundred five billion, five hundred thirteen million, six hundred twelve thousand, one hundred thirty-four".