245320331999 has 8 divisors (see below), whose sum is σ = 258314784000. Its totient is φ = 232334165592.

The previous prime is 245320331983. The next prime is 245320332029. The reversal of 245320331999 is 999133023542.

It is a happy number.

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 245320331999 - 2⁴ = 245320331983 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 (245320331929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010569 + ... + 2129090.

It is an arithmetic number, because the mean of its divisors is an integer number (32289348000).

Almost surely, 2^245320331999 is an apocalyptic number.

245320331999 is a deficient number, since it is larger than the sum of its proper divisors (12994452001).

245320331999 is a wasteful number, since it uses less digits than its factorization.

245320331999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142797.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 245320331999 in words is "two hundred forty-five billion, three hundred twenty million, three hundred thirty-one thousand, nine hundred ninety-nine".