25850634630 has 16 divisors (see below), whose sum is σ = 62041523184. Its totient is φ = 6893502560.

The previous prime is 25850634613. The next prime is 25850634653. The reversal of 25850634630 is 3643605852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430843881 + ... + 430843940.

It is an arithmetic number, because the mean of its divisors is an integer number (3877595199).

Almost surely, 2^25850634630 is an apocalyptic number.

25850634630 is an abundant number, since it is smaller than the sum of its proper divisors (36190888554).

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

25850634630 is a wasteful number, since it uses less digits than its factorization.

25850634630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861687831.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 25850634630 in words is "twenty-five billion, eight hundred fifty million, six hundred thirty-four thousand, six hundred thirty".