250638434065 has 8 divisors (see below), whose sum is σ = 303686180928. Its totient is φ = 198564040560.

The previous prime is 250638434041. The next prime is 250638434113. The reversal of 250638434065 is 560434836052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 250638434065 - 2¹⁹ = 250637909777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243337771 + ... + 243338800.

It is an arithmetic number, because the mean of its divisors is an integer number (37960772616).

Almost surely, 2^250638434065 is an apocalyptic number.

It is an amenable number.

250638434065 is a deficient number, since it is larger than the sum of its proper divisors (53047746863).

250638434065 is a wasteful number, since it uses less digits than its factorization.

250638434065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486676679.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 250638434065 in words is "two hundred fifty billion, six hundred thirty-eight million, four hundred thirty-four thousand, sixty-five".