25719042888 has 640 divisors, whose sum is σ = 95310673920. Its totient is φ = 6281763840.

The previous prime is 25719042887. The next prime is 25719042901. The reversal of 25719042888 is 88824091752.

25719042888 is a `hidden beast` number, since 2 + 57 + 1 + 90 + 428 + 88 = 666.

It is a super-2 number, since 2×25719042888² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (25719042887) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 83775231 + ... + 83775537.

It is an arithmetic number, because the mean of its divisors is an integer number (148922928).

Almost surely, 2^25719042888 is an apocalyptic number.

25719042888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25719042888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47655336960).

25719042888 is an abundant number, since it is smaller than the sum of its proper divisors (69591631032).

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

25719042888 is a wasteful number, since it uses less digits than its factorization.

25719042888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 25719042888 in words is "twenty-five billion, seven hundred nineteen million, forty-two thousand, eight hundred eighty-eight".