25134018834 has 16 divisors (see below), whose sum is σ = 50832848160. Its totient is φ = 8283871200.

The previous prime is 25134018799. The next prime is 25134018839. The reversal of 25134018834 is 43881043152.

It is a junction number, because it is equal to n+sod(n) for n = 25134018792 and 25134018801.

It is not an unprimeable number, because it can be changed into a prime (25134018839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23533192 + ... + 23534259.

It is an arithmetic number, because the mean of its divisors is an integer number (3177053010).

Almost surely, 2^25134018834 is an apocalyptic number.

25134018834 is an abundant number, since it is smaller than the sum of its proper divisors (25698829326).

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

25134018834 is a wasteful number, since it uses less digits than its factorization.

25134018834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47067545.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 25134018834 in words is "twenty-five billion, one hundred thirty-four million, eighteen thousand, eight hundred thirty-four".