25986905464 has 16 divisors (see below), whose sum is σ = 52473559320. Its totient is φ = 11993956320.

The previous prime is 25986905431. The next prime is 25986905471. The reversal of 25986905464 is 46450968952.

It is a junction number, because it is equal to n+sod(n) for n = 25986905399 and 25986905408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124936942 + ... + 124937149.

Almost surely, 2^25986905464 is an apocalyptic number.

It is an amenable number.

25986905464 is an abundant number, since it is smaller than the sum of its proper divisors (26486653856).

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

25986905464 is a wasteful number, since it uses less digits than its factorization.

25986905464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249874110 (or 249874106 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 25986905464 in words is "twenty-five billion, nine hundred eighty-six million, nine hundred five thousand, four hundred sixty-four".