26244640244 has 48 divisors (see below), whose sum is σ = 47709446400. Its totient is φ = 12625891200.

The previous prime is 26244640181. The next prime is 26244640267. The reversal of 26244640244 is 44204644262.

It is a super-2 number, since 2×26244640244² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26244640198 and 26244640207.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2094839 + ... + 2107329.

It is an arithmetic number, because the mean of its divisors is an integer number (993946800).

Almost surely, 2^26244640244 is an apocalyptic number.

It is an amenable number.

26244640244 is a deficient number, since it is larger than the sum of its proper divisors (21464806156).

26244640244 is a wasteful number, since it uses less digits than its factorization.

26244640244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12744 (or 12742 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 26244640244 in words is "twenty-six billion, two hundred forty-four million, six hundred forty thousand, two hundred forty-four".