26243548487 has 16 divisors (see below), whose sum is σ = 28367431680. Its totient is φ = 24134866272.

The previous prime is 26243548469. The next prime is 26243548493. The reversal of 26243548487 is 78484534262.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26243548487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26243548417) 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 15 ways as a sum of consecutive naturals, for example, 4123814 + ... + 4130172.

It is an arithmetic number, because the mean of its divisors is an integer number (1772964480).

Almost surely, 2^26243548487 is an apocalyptic number.

26243548487 is a deficient number, since it is larger than the sum of its proper divisors (2123883193).

26243548487 is a wasteful number, since it uses less digits than its factorization.

26243548487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502.

The product of its digits is 10321920, while the sum is 53.

The spelling of 26243548487 in words is "twenty-six billion, two hundred forty-three million, five hundred forty-eight thousand, four hundred eighty-seven".