245602795991 has 16 divisors (see below), whose sum is σ = 290692166400. Its totient is φ = 207374622840.

The previous prime is 245602795979. The next prime is 245602796003. The reversal of 245602795991 is 199597206542.

245602795991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245602795979) and next prime (245602796003).

It is a de Polignac number, because none of the positive numbers 2^k-245602795991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245602795991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245602795391) 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 15 ways as a sum of consecutive naturals, for example, 5320625 + ... + 5366586.

It is an arithmetic number, because the mean of its divisors is an integer number (18168260400).

Almost surely, 2^245602795991 is an apocalyptic number.

245602795991 is a deficient number, since it is larger than the sum of its proper divisors (45089370409).

245602795991 is an equidigital number, since it uses as much as digits as its factorization.

245602795991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10687299 (or 10687285 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 245602795991 in words is "two hundred forty-five billion, six hundred two million, seven hundred ninety-five thousand, nine hundred ninety-one".