26019666244 has 36 divisors (see below), whose sum is σ = 53900256172. Its totient is φ = 10917339840.

The previous prime is 26019666203. The next prime is 26019666271. The reversal of 26019666244 is 44266691062.

It can be written as a sum of positive squares in 2 ways, for example, as 4968558144 + 21051108100 = 70488^2 + 145090^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26019666194 and 26019666203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2061387 + ... + 2073970.

Almost surely, 2^26019666244 is an apocalyptic number.

It is an amenable number.

26019666244 is an abundant number, since it is smaller than the sum of its proper divisors (27880589928).

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

26019666244 is a wasteful number, since it uses less digits than its factorization.

26019666244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135396 (or 4135383 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 26019666244 in words is "twenty-six billion, nineteen million, six hundred sixty-six thousand, two hundred forty-four".