26044000642 has 16 divisors (see below), whose sum is σ = 44470389312. Its totient is φ = 11323478320.

The previous prime is 26044000621. The next prime is 26044000657. The reversal of 26044000642 is 24600044062.

It is a self number, because there is not a number n which added to its sum of digits gives 26044000642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25734673 + ... + 25735684.

It is an arithmetic number, because the mean of its divisors is an integer number (2779399332).

Almost surely, 2^26044000642 is an apocalyptic number.

26044000642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26044000642 is a deficient number, since it is larger than the sum of its proper divisors (18426388670).

26044000642 is a wasteful number, since it uses less digits than its factorization.

26044000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51470393.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 26044000642 in words is "twenty-six billion, forty-four million, six hundred forty-two", and thus it is an aban number.