249539761713 has 8 divisors (see below), whose sum is σ = 362966926176. Its totient is φ = 151236219200.

The previous prime is 249539761693. The next prime is 249539761717. The reversal of 249539761713 is 317167935942.

249539761713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 249539761713 - 2¹³ = 249539753521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249539761717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3780905448 + ... + 3780905513.

It is an arithmetic number, because the mean of its divisors is an integer number (45370865772).

Almost surely, 2^249539761713 is an apocalyptic number.

It is an amenable number.

249539761713 is a deficient number, since it is larger than the sum of its proper divisors (113427164463).

249539761713 is a wasteful number, since it uses less digits than its factorization.

249539761713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7561810975.

The product of its digits is 8573040, while the sum is 57.

The spelling of 249539761713 in words is "two hundred forty-nine billion, five hundred thirty-nine million, seven hundred sixty-one thousand, seven hundred thirteen".