249116432687 has 8 divisors (see below), whose sum is σ = 250384614480. Its totient is φ = 247849952320.

The previous prime is 249116432641. The next prime is 249116432689. The reversal of 249116432687 is 786234611942.

249116432687 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 a cyclic number.

It is not a de Polignac number, because 249116432687 - 2³² = 244821465391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249116432689) 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, 131264 + ... + 717957.

It is an arithmetic number, because the mean of its divisors is an integer number (31298076810).

Almost surely, 2^249116432687 is an apocalyptic number.

249116432687 is a deficient number, since it is larger than the sum of its proper divisors (1268181793).

249116432687 is a wasteful number, since it uses less digits than its factorization.

249116432687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850713.

The product of its digits is 3483648, while the sum is 53.

The spelling of 249116432687 in words is "two hundred forty-nine billion, one hundred sixteen million, four hundred thirty-two thousand, six hundred eighty-seven".