26445194644 has 24 divisors (see below), whose sum is σ = 50495695488. Its totient is φ = 12018301440.

The previous prime is 26445194639. The next prime is 26445194687. The reversal of 26445194644 is 44649154462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195252 + ... + 301684.

It is an arithmetic number, because the mean of its divisors is an integer number (2103987312).

Almost surely, 2^26445194644 is an apocalyptic number.

It is an amenable number.

26445194644 is a deficient number, since it is larger than the sum of its proper divisors (24050500844).

26445194644 is a wasteful number, since it uses less digits than its factorization.

26445194644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112095 (or 112093 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 49.

The spelling of 26445194644 in words is "twenty-six billion, four hundred forty-five million, one hundred ninety-four thousand, six hundred forty-four".