25379866944 has 224 divisors, whose sum is σ = 75961036800. Its totient is φ = 8308500480.

The previous prime is 25379866927. The next prime is 25379866979. The reversal of 25379866944 is 44966897352.

25379866944 is a `hidden beast` number, since 2 + 537 + 9 + 8 + 6 + 6 + 94 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23920174 + ... + 23921234.

Almost surely, 2^25379866944 is an apocalyptic number.

25379866944 is a gapful number since it is divisible by the number (24) 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 25379866944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37980518400).

25379866944 is an abundant number, since it is smaller than the sum of its proper divisors (50581169856).

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

25379866944 is a wasteful number, since it uses less digits than its factorization.

25379866944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1302 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 25379866944 in words is "twenty-five billion, three hundred seventy-nine million, eight hundred sixty-six thousand, nine hundred forty-four".