25898764320 has 576 divisors, whose sum is σ = 104574322944. Its totient is φ = 5754101760.

The previous prime is 25898764319. The next prime is 25898764351. The reversal of 25898764320 is 2346789852.

25898764320 is a `hidden beast` number, since 2 + 58 + 98 + 76 + 432 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35623797 + ... + 35624523.

It is an arithmetic number, because the mean of its divisors is an integer number (181552644).

Almost surely, 2^25898764320 is an apocalyptic number.

25898764320 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 25898764320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52287161472).

25898764320 is an abundant number, since it is smaller than the sum of its proper divisors (78675558624).

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

25898764320 is a wasteful number, since it uses less digits than its factorization.

25898764320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 25898764320 in words is "twenty-five billion, eight hundred ninety-eight million, seven hundred sixty-four thousand, three hundred twenty".