26445563156 has 24 divisors (see below), whose sum is σ = 47659920000. Its totient is φ = 12834117504.

The previous prime is 26445563147. The next prime is 26445563213. The reversal of 26445563156 is 65136554462.

It is a self number, because there is not a number n which added to its sum of digits gives 26445563156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690581 + ... + 727868.

It is an arithmetic number, because the mean of its divisors is an integer number (1985830000).

Almost surely, 2^26445563156 is an apocalyptic number.

It is an amenable number.

26445563156 is a deficient number, since it is larger than the sum of its proper divisors (21214356844).

26445563156 is a wasteful number, since it uses less digits than its factorization.

26445563156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418591 (or 1418589 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 26445563156 in words is "twenty-six billion, four hundred forty-five million, five hundred sixty-three thousand, one hundred fifty-six".