25442862368 has 96 divisors (see below), whose sum is σ = 62587219968. Its totient is φ = 9891129600.

The previous prime is 25442862317. The next prime is 25442862433. The reversal of 25442862368 is 86326824452.

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, 1139633 + ... + 1161743.

It is an arithmetic number, because the mean of its divisors is an integer number (651950208).

Almost surely, 2^25442862368 is an apocalyptic number.

25442862368 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 25442862368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31293609984).

25442862368 is an abundant number, since it is smaller than the sum of its proper divisors (37144357600).

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

25442862368 is a wasteful number, since it uses less digits than its factorization.

25442862368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22606 (or 22598 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 50.

The spelling of 25442862368 in words is "twenty-five billion, four hundred forty-two million, eight hundred sixty-two thousand, three hundred sixty-eight".