25812236890 has 16 divisors (see below), whose sum is σ = 50685847200. Its totient is φ = 9386267920.

The previous prime is 25812236833. The next prime is 25812236911. The reversal of 25812236890 is 9863221852.

It is a self number, because there is not a number n which added to its sum of digits gives 25812236890.

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, 117328240 + ... + 117328459.

It is an arithmetic number, because the mean of its divisors is an integer number (3167865450).

Almost surely, 2^25812236890 is an apocalyptic number.

25812236890 is a deficient number, since it is larger than the sum of its proper divisors (24873610310).

25812236890 is a wasteful number, since it uses less digits than its factorization.

25812236890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234656717.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 25812236890 in words is "twenty-five billion, eight hundred twelve million, two hundred thirty-six thousand, eight hundred ninety".