245800362779 has 2 divisors, whose sum is σ = 245800362780. Its totient is φ = 245800362778.

The previous prime is 245800362751. The next prime is 245800362799. The reversal of 245800362779 is 977263008542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245800362779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245800362779.

It is not a weakly prime, because it can be changed into another prime (245800362749) 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 as a sum of consecutive naturals, namely, 122900181389 + 122900181390.

It is an arithmetic number, because the mean of its divisors is an integer number (122900181390).

Almost surely, 2^245800362779 is an apocalyptic number.

245800362779 is a deficient number, since it is larger than the sum of its proper divisors (1).

245800362779 is an equidigital number, since it uses as much as digits as its factorization.

245800362779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 245800362779 in words is "two hundred forty-five billion, eight hundred million, three hundred sixty-two thousand, seven hundred seventy-nine".