25093967838 has 16 divisors (see below), whose sum is σ = 50269815696. Its totient is φ = 8351009280.

The previous prime is 25093967819. The next prime is 25093967879. The reversal of 25093967838 is 83876939052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407683 + ... + 3415038.

It is an arithmetic number, because the mean of its divisors is an integer number (3141863481).

Almost surely, 2^25093967838 is an apocalyptic number.

25093967838 is an abundant number, since it is smaller than the sum of its proper divisors (25175847858).

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

25093967838 is a wasteful number, since it uses less digits than its factorization.

25093967838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823339.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 25093967838 in words is "twenty-five billion, ninety-three million, nine hundred sixty-seven thousand, eight hundred thirty-eight".