245864822979 has 16 divisors (see below), whose sum is σ = 345812388480. Its totient is φ = 154950517440.

The previous prime is 245864822927. The next prime is 245864823007. The reversal of 245864822979 is 979228468542.

It is not a de Polignac number, because 245864822979 - 2⁷ = 245864822851 is a prime.

It is a super-2 number, since 2×245864822979² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245864822179) 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 15 ways as a sum of consecutive naturals, for example, 4591602 + ... + 4644839.

It is an arithmetic number, because the mean of its divisors is an integer number (21613274280).

Almost surely, 2^245864822979 is an apocalyptic number.

245864822979 is a deficient number, since it is larger than the sum of its proper divisors (99947565501).

245864822979 is a wasteful number, since it uses less digits than its factorization.

245864822979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9236930.

The product of its digits is 139345920, while the sum is 66.

The spelling of 245864822979 in words is "two hundred forty-five billion, eight hundred sixty-four million, eight hundred twenty-two thousand, nine hundred seventy-nine".