26389785463 has 16 divisors (see below), whose sum is σ = 28690485120. Its totient is φ = 24191135136.

The previous prime is 26389785437. The next prime is 26389785467. The reversal of 26389785463 is 36458798362.

It is a cyclic number.

It is not a de Polignac number, because 26389785463 - 2⁹ = 26389784951 is a prime.

It is a super-2 number, since 2×26389785463² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26389785467) 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, 63520 + ... + 238357.

It is an arithmetic number, because the mean of its divisors is an integer number (1793155320).

Almost surely, 2^26389785463 is an apocalyptic number.

26389785463 is a deficient number, since it is larger than the sum of its proper divisors (2300699657).

26389785463 is a wasteful number, since it uses less digits than its factorization.

26389785463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302046.

The product of its digits is 52254720, while the sum is 61.

The spelling of 26389785463 in words is "twenty-six billion, three hundred eighty-nine million, seven hundred eighty-five thousand, four hundred sixty-three".