26454713623 has 6 divisors (see below), whose sum is σ = 28646228544. Its totient is φ = 24419735496.

The previous prime is 26454713561. The next prime is 26454713627. The reversal of 26454713623 is 32631745462.

It is a de Polignac number, because none of the positive numbers 2^k-26454713623 is a prime.

It is a super-2 number, since 2×26454713623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26454713623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26454713627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78268215 + ... + 78268552.

It is an arithmetic number, because the mean of its divisors is an integer number (4774371424).

Almost surely, 2^26454713623 is an apocalyptic number.

26454713623 is a deficient number, since it is larger than the sum of its proper divisors (2191514921).

26454713623 is a wasteful number, since it uses less digits than its factorization.

26454713623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156536793 (or 156536780 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The spelling of 26454713623 in words is "twenty-six billion, four hundred fifty-four million, seven hundred thirteen thousand, six hundred twenty-three".