26644426066642 has 16 divisors (see below), whose sum is σ = 40284382464000. Its totient is φ = 13216314440448.

The previous prime is 26644426066639. The next prime is 26644426066679. The reversal of 26644426066642 is 24666062444662.

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, 593518 + ... + 7324009.

It is an arithmetic number, because the mean of its divisors is an integer number (2517773904000).

Almost surely, 2^{26644426066642} is an apocalyptic number.

26644426066642 is a deficient number, since it is larger than the sum of its proper divisors (13639956397358).

26644426066642 is a wasteful number, since it uses less digits than its factorization.

26644426066642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930905.

The product of its (nonzero) digits is 95551488, while the sum is 58.

The spelling of 26644426066642 in words is "twenty-six trillion, six hundred forty-four billion, four hundred twenty-six million, sixty-six thousand, six hundred forty-two".