25670256364 has 6 divisors (see below), whose sum is σ = 44922948644. Its totient is φ = 12835128180.

The previous prime is 25670256361. The next prime is 25670256379. The reversal of 25670256364 is 46365207652.

It is not an unprimeable number, because it can be changed into a prime (25670256361) by changing a digit.

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 as a sum of consecutive naturals, namely, 3208782042 + ... + 3208782049.

Almost surely, 2^25670256364 is an apocalyptic number.

It is an amenable number.

25670256364 is a deficient number, since it is larger than the sum of its proper divisors (19252692280).

25670256364 is a wasteful number, since it uses less digits than its factorization.

25670256364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417564095 (or 6417564093 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 25670256364 in words is "twenty-five billion, six hundred seventy million, two hundred fifty-six thousand, three hundred sixty-four".