25943444340432 has 80 divisors (see below), whose sum is σ = 68452563041280. Its totient is φ = 8463073196416.

The previous prime is 25943444340389. The next prime is 25943444340509. The reversal of 25943444340432 is 23404344434952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25404919 + ... + 26406377.

It is an arithmetic number, because the mean of its divisors is an integer number (855657038016).

Almost surely, 2^{25943444340432} is an apocalyptic number.

It is an amenable number.

25943444340432 is an abundant number, since it is smaller than the sum of its proper divisors (42509118700848).

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

25943444340432 is a wasteful number, since it uses less digits than its factorization.

25943444340432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013000 (or 1012994 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 51.

The spelling of 25943444340432 in words is "twenty-five trillion, nine hundred forty-three billion, four hundred forty-four million, three hundred forty thousand, four hundred thirty-two".