25703734068 has 18 divisors (see below), whose sum is σ = 64973327874. Its totient is φ = 8567911344.

The previous prime is 25703734009. The next prime is 25703734081. The reversal of 25703734068 is 86043730752.

25703734068 is a `hidden beast` number, since 2 + 570 + 3 + 73 + 4 + 0 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17969938704 + 7733795364 = 134052^2 + 87942^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356996271 + ... + 356996342.

Almost surely, 2^25703734068 is an apocalyptic number.

It is an amenable number.

25703734068 is an abundant number, since it is smaller than the sum of its proper divisors (39269593806).

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

25703734068 is a wasteful number, since it uses less digits than its factorization.

25703734068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713992623 (or 713992618 counting only the distinct ones).

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

The spelling of 25703734068 in words is "twenty-five billion, seven hundred three million, seven hundred thirty-four thousand, sixty-eight".