26441562381 has 24 divisors (see below), whose sum is σ = 39835826496. Its totient is φ = 15564257280.

The previous prime is 26441562379. The next prime is 26441562421. The reversal of 26441562381 is 18326514462.

It is not a de Polignac number, because 26441562381 - 2¹ = 26441562379 is a prime.

It is a super-2 number, since 2×26441562381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26441561381) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1122100 + ... + 1145421.

It is an arithmetic number, because the mean of its divisors is an integer number (1659826104).

Almost surely, 2^26441562381 is an apocalyptic number.

It is an amenable number.

26441562381 is a deficient number, since it is larger than the sum of its proper divisors (13394264115).

26441562381 is a wasteful number, since it uses less digits than its factorization.

26441562381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267573 (or 2267560 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The spelling of 26441562381 in words is "twenty-six billion, four hundred forty-one million, five hundred sixty-two thousand, three hundred eighty-one".