25043254240068 has 18 divisors (see below), whose sum is σ = 63303781551374. Its totient is φ = 8347751413344.

The previous prime is 25043254240063. The next prime is 25043254240099. The reversal of 25043254240068 is 86004245234052.

It is a happy number.

25043254240068 is a `hidden beast` number, since 2 + 5 + 0 + 4 + 3 + 2 + 542 + 40 + 0 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24852837208644 + 190417031424 = 4985262^2 + 436368^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (25043254240063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347822975521 + ... + 347822975592.

Almost surely, 2^{25043254240068} is an apocalyptic number.

It is an amenable number.

25043254240068 is an abundant number, since it is smaller than the sum of its proper divisors (38260527311306).

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

25043254240068 is a wasteful number, since it uses less digits than its factorization.

25043254240068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695645951123 (or 695645951118 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 25043254240068 in words is "twenty-five trillion, forty-three billion, two hundred fifty-four million, two hundred forty thousand, sixty-eight".