249564343465942 has 16 divisors (see below), whose sum is σ = 390650180942592. Its totient is φ = 119348386771240.

The previous prime is 249564343465933. The next prime is 249564343466041.

249564343465942 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191916484 + ... + 193212487.

It is an arithmetic number, because the mean of its divisors is an integer number (24415636308912).

Almost surely, 2^{249564343465942} is an apocalyptic number.

249564343465942 is a deficient number, since it is larger than the sum of its proper divisors (141085837476650).

249564343465942 is a wasteful number, since it uses less digits than its factorization.

249564343465942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385143083.

The product of its digits is 2687385600, while the sum is 70.

The spelling of 249564343465942 in words is "two hundred forty-nine trillion, five hundred sixty-four billion, three hundred forty-three million, four hundred sixty-five thousand, nine hundred forty-two".