25797379608 has 576 divisors, whose sum is σ = 97610123520. Its totient is φ = 6172588800.

The previous prime is 25797379567. The next prime is 25797379627. The reversal of 25797379608 is 80697379752.

25797379608 is a `hidden beast` number, since 257 + 9 + 7 + 379 + 6 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 52540243 + ... + 52540733.

It is an arithmetic number, because the mean of its divisors is an integer number (169462020).

Almost surely, 2^25797379608 is an apocalyptic number.

25797379608 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 25797379608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48805061760).

25797379608 is an abundant number, since it is smaller than the sum of its proper divisors (71812743912).

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

25797379608 is a wasteful number, since it uses less digits than its factorization.

25797379608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 25797379608 in words is "twenty-five billion, seven hundred ninety-seven million, three hundred seventy-nine thousand, six hundred eight".