202879809944 has 16 divisors (see below), whose sum is σ = 434742450000. Its totient is φ = 86948489952.

The previous prime is 202879809917. The next prime is 202879809949. The reversal of 202879809944 is 449908978202.

202879809944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×202879809944² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202879809949) 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 3 ways as a sum of consecutive naturals, for example, 1811426819 + ... + 1811426930.

It is an arithmetic number, because the mean of its divisors is an integer number (27171403125).

Almost surely, 2^202879809944 is an apocalyptic number.

It is an amenable number.

202879809944 is an abundant number, since it is smaller than the sum of its proper divisors (231862640056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202879809944 is a wasteful number, since it uses less digits than its factorization.

202879809944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622853762 (or 3622853758 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 202879809944 in words is "two hundred two billion, eight hundred seventy-nine million, eight hundred nine thousand, nine hundred forty-four".