25214128084 has 24 divisors (see below), whose sum is σ = 44541493920. Its totient is φ = 12488049504.

The previous prime is 25214128063. The next prime is 25214128111. The reversal of 25214128084 is 48082141252.

It is a super-2 number, since 2×25214128084² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 2699847 + ... + 2709169.

It is an arithmetic number, because the mean of its divisors is an integer number (1855895580).

Almost surely, 2^25214128084 is an apocalyptic number.

It is an amenable number.

25214128084 is a deficient number, since it is larger than the sum of its proper divisors (19327365836).

25214128084 is a wasteful number, since it uses less digits than its factorization.

25214128084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15639 (or 15637 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 25214128084 in words is "twenty-five billion, two hundred fourteen million, one hundred twenty-eight thousand, eighty-four".