25871214728 has 32 divisors (see below), whose sum is σ = 48888840000. Its totient is φ = 12834521280.

The previous prime is 25871214697. The next prime is 25871214757. The reversal of 25871214728 is 82741217852.

It is a super-2 number, since 2×25871214728² (a number of 22 digits) contains 22 as substring.

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, 615323 + ... + 656021.

It is an arithmetic number, because the mean of its divisors is an integer number (1527776250).

Almost surely, 2^25871214728 is an apocalyptic number.

It is an amenable number.

25871214728 is a deficient number, since it is larger than the sum of its proper divisors (23017625272).

25871214728 is a wasteful number, since it uses less digits than its factorization.

25871214728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41325 (or 41321 counting only the distinct ones).

The product of its digits is 501760, while the sum is 47.

The spelling of 25871214728 in words is "twenty-five billion, eight hundred seventy-one million, two hundred fourteen thousand, seven hundred twenty-eight".