245098370879 has 4 divisors (see below), whose sum is σ = 245377845384. Its totient is φ = 244818896376.

The previous prime is 245098370857. The next prime is 245098370929. The reversal of 245098370879 is 978073890542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245098370879 is a prime.

It is a super-2 number, since 2×245098370879² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245098370779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139735937 + ... + 139737690.

It is an arithmetic number, because the mean of its divisors is an integer number (61344461346).

Almost surely, 2^245098370879 is an apocalyptic number.

245098370879 is a deficient number, since it is larger than the sum of its proper divisors (279474505).

245098370879 is an equidigital number, since it uses as much as digits as its factorization.

245098370879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279474504.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 245098370879 in words is "two hundred forty-five billion, ninety-eight million, three hundred seventy thousand, eight hundred seventy-nine".