26139744895 has 32 divisors (see below), whose sum is σ = 35081164800. Its totient is φ = 18535011840.

The previous prime is 26139744889. The next prime is 26139744899. The reversal of 26139744895 is 59844793162.

It is not a de Polignac number, because 26139744895 - 2⁹ = 26139744383 is a prime.

It is a super-2 number, since 2×26139744895² (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 (26139744899) 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 31 ways as a sum of consecutive naturals, for example, 660631 + ... + 699079.

It is an arithmetic number, because the mean of its divisors is an integer number (1096286400).

Almost surely, 2^26139744895 is an apocalyptic number.

26139744895 is a deficient number, since it is larger than the sum of its proper divisors (8941419905).

26139744895 is a wasteful number, since it uses less digits than its factorization.

26139744895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38775.

The product of its digits is 13063680, while the sum is 58.

The spelling of 26139744895 in words is "twenty-six billion, one hundred thirty-nine million, seven hundred forty-four thousand, eight hundred ninety-five".