26420644783 has 16 divisors (see below), whose sum is σ = 28617908256. Its totient is φ = 24247296000.

The previous prime is 26420644781. The next prime is 26420644787. The reversal of 26420644783 is 38744602462.

It is a cyclic number.

It is not a de Polignac number, because 26420644783 - 2¹ = 26420644781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420644781) by changing a digit.

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, 1875735 + ... + 1889767.

It is an arithmetic number, because the mean of its divisors is an integer number (1788619266).

Almost surely, 2^26420644783 is an apocalyptic number.

26420644783 is a deficient number, since it is larger than the sum of its proper divisors (2197263473).

26420644783 is a wasteful number, since it uses less digits than its factorization.

26420644783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14874.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 26420644783 in words is "twenty-six billion, four hundred twenty million, six hundred forty-four thousand, seven hundred eighty-three".