25789727400 has 96 divisors (see below), whose sum is σ = 80252631360. Its totient is φ = 6851069440.

The previous prime is 25789727377. The next prime is 25789727423. The reversal of 25789727400 is 472798752.

It is an interprime number because it is at equal distance from previous prime (25789727377) and next prime (25789727423).

It is a super-2 number, since 2×25789727400² (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 23 ways as a sum of consecutive naturals, for example, 76084 + ... + 239516.

It is an arithmetic number, because the mean of its divisors is an integer number (835964910).

Almost surely, 2^25789727400 is an apocalyptic number.

25789727400 is a gapful number since it is divisible by the number (20) 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 25789727400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40126315680).

25789727400 is an abundant number, since it is smaller than the sum of its proper divisors (54462903960).

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

25789727400 is a wasteful number, since it uses less digits than its factorization.

25789727400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163715 (or 163706 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 25789727400 in words is "twenty-five billion, seven hundred eighty-nine million, seven hundred twenty-seven thousand, four hundred".