230644643257 has 8 divisors (see below), whose sum is σ = 265050199232. Its totient is φ = 196603167600.

The previous prime is 230644643221. The next prime is 230644643261. The reversal of 230644643257 is 752346446032.

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

It is not a de Polignac number, because 230644643257 - 2³¹ = 228497159609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230644643267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91018719 + ... + 91021252.

It is an arithmetic number, because the mean of its divisors is an integer number (33131274904).

Almost surely, 2^230644643257 is an apocalyptic number.

It is an amenable number.

230644643257 is a deficient number, since it is larger than the sum of its proper divisors (34405555975).

230644643257 is a wasteful number, since it uses less digits than its factorization.

230644643257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182040159.

The product of its (nonzero) digits is 2903040, while the sum is 46.

The spelling of 230644643257 in words is "two hundred thirty billion, six hundred forty-four million, six hundred forty-three thousand, two hundred fifty-seven".