249665727566942 has 8 divisors (see below), whose sum is σ = 374498658790056. Its totient is φ = 124832841303592.

The previous prime is 249665727566939. The next prime is 249665727566953.

249665727566942 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13794593 + ... + 26260659.

It is an arithmetic number, because the mean of its divisors is an integer number (46812332348757).

Almost surely, 2^{249665727566942} is an apocalyptic number.

249665727566942 is a deficient number, since it is larger than the sum of its proper divisors (124832931223114).

249665727566942 is a wasteful number, since it uses less digits than its factorization.

249665727566942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22479882.

The product of its digits is 16460236800, while the sum is 80.

The spelling of 249665727566942 in words is "two hundred forty-nine trillion, six hundred sixty-five billion, seven hundred twenty-seven million, five hundred sixty-six thousand, nine hundred forty-two".