249945112579 has 8 divisors (see below), whose sum is σ = 250546970880. Its totient is φ = 249343723200.

The previous prime is 249945112553. The next prime is 249945112583. The reversal of 249945112579 is 975211549942.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249945112579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249945112589) 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, 962014 + ... + 1193884.

It is an arithmetic number, because the mean of its divisors is an integer number (31318371360).

Almost surely, 2^249945112579 is an apocalyptic number.

249945112579 is a deficient number, since it is larger than the sum of its proper divisors (601858301).

249945112579 is a wasteful number, since it uses less digits than its factorization.

249945112579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234461.

The product of its digits is 8164800, while the sum is 58.

The spelling of 249945112579 in words is "two hundred forty-nine billion, nine hundred forty-five million, one hundred twelve thousand, five hundred seventy-nine".