25138192896 has 480 divisors, whose sum is σ = 80432352000. Its totient is φ = 7529103360.

The previous prime is 25138192847. The next prime is 25138192897. The reversal of 25138192896 is 69829183152.

25138192896 is a `hidden beast` number, since 2 + 513 + 8 + 19 + 28 + 96 = 666.

It is not an unprimeable number, because it can be changed into a prime (25138192897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168712630 + ... + 168712778.

It is an arithmetic number, because the mean of its divisors is an integer number (167567400).

Almost surely, 2^25138192896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25138192896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40216176000).

25138192896 is an abundant number, since it is smaller than the sum of its proper divisors (55294159104).

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

25138192896 is a wasteful number, since it uses less digits than its factorization.

25138192896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 261 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 25138192896 in words is "twenty-five billion, one hundred thirty-eight million, one hundred ninety-two thousand, eight hundred ninety-six".