25945115697984 has 896 divisors, whose sum is σ = 90705596055552. Its totient is φ = 6369462190080.

The previous prime is 25945115697973. The next prime is 25945115698081. The reversal of 25945115697984 is 48979651154952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1189204644 + ... + 1189226460.

Almost surely, 2^{25945115697984} is an apocalyptic number.

25945115697984 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 25945115697984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45352798027776).

25945115697984 is an abundant number, since it is smaller than the sum of its proper divisors (64760480357568).

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

25945115697984 is a wasteful number, since it uses less digits than its factorization.

25945115697984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21983 (or 21973 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 75.

The spelling of 25945115697984 in words is "twenty-five trillion, nine hundred forty-five billion, one hundred fifteen million, six hundred ninety-seven thousand, nine hundred eighty-four".