25390873876 has 24 divisors (see below), whose sum is σ = 45507052584. Its totient is φ = 12391342080.

The previous prime is 25390873867. The next prime is 25390873927. The reversal of 25390873876 is 67837809352.

It can be written as a sum of positive squares in 4 ways, for example, as 4478821776 + 20912052100 = 66924^2 + 144610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25390873876.

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, 269365 + ... + 351196.

It is an arithmetic number, because the mean of its divisors is an integer number (1896127191).

Almost surely, 2^25390873876 is an apocalyptic number.

It is an amenable number.

25390873876 is a deficient number, since it is larger than the sum of its proper divisors (20116178708).

25390873876 is a wasteful number, since it uses less digits than its factorization.

25390873876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620811 (or 620809 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 25390873876 in words is "twenty-five billion, three hundred ninety million, eight hundred seventy-three thousand, eight hundred seventy-six".