245926886399 has 4 divisors (see below), whose sum is σ = 246568993536. Its totient is φ = 245284779264.

The previous prime is 245926886389. The next prime is 245926886423. The reversal of 245926886399 is 993688629542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245926886399 - 2⁸ = 245926886143 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 (245926886389) 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 3 ways as a sum of consecutive naturals, for example, 321052994 + ... + 321053759.

It is an arithmetic number, because the mean of its divisors is an integer number (61642248384).

Almost surely, 2^245926886399 is an apocalyptic number.

245926886399 is a deficient number, since it is larger than the sum of its proper divisors (642107137).

245926886399 is an equidigital number, since it uses as much as digits as its factorization.

245926886399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642107136.

The product of its digits is 403107840, while the sum is 71.

The spelling of 245926886399 in words is "two hundred forty-five billion, nine hundred twenty-six million, eight hundred eighty-six thousand, three hundred ninety-nine".