25340737068 has 18 divisors (see below), whose sum is σ = 64055752124. Its totient is φ = 8446912344.

The previous prime is 25340737043. The next prime is 25340737069. The reversal of 25340737068 is 86073704352.

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

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25340737069) 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, 351954646 + ... + 351954717.

Almost surely, 2^25340737068 is an apocalyptic number.

It is an amenable number.

25340737068 is an abundant number, since it is smaller than the sum of its proper divisors (38715015056).

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

25340737068 is a wasteful number, since it uses less digits than its factorization.

25340737068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703909373 (or 703909368 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 25340737068 in words is "twenty-five billion, three hundred forty million, seven hundred thirty-seven thousand, sixty-eight".