25794006418 has 4 divisors (see below), whose sum is σ = 38691009630. Its totient is φ = 12897003208.

The previous prime is 25794006353. The next prime is 25794006421. The reversal of 25794006418 is 81460049752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23215702689 + 2578303729 = 152367^2 + 50777^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6448501603 + ... + 6448501606.

Almost surely, 2^25794006418 is an apocalyptic number.

25794006418 is a deficient number, since it is larger than the sum of its proper divisors (12897003212).

25794006418 is a wasteful number, since it uses less digits than its factorization.

25794006418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12897003211.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 25794006418 in words is "twenty-five billion, seven hundred ninety-four million, six thousand, four hundred eighteen".