26490440975 has 12 divisors (see below), whose sum is σ = 33404896920. Its totient is φ = 20833159200.

The previous prime is 26490440939. The next prime is 26490440987. The reversal of 26490440975 is 57904409462.

It is not a de Polignac number, because 26490440975 - 2¹⁴ = 26490424591 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8978336 + ... + 8981285.

It is an arithmetic number, because the mean of its divisors is an integer number (2783741410).

Almost surely, 2^26490440975 is an apocalyptic number.

26490440975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26490440975 is a deficient number, since it is larger than the sum of its proper divisors (6914455945).

26490440975 is a wasteful number, since it uses less digits than its factorization.

26490440975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17959690 (or 17959685 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 26490440975 in words is "twenty-six billion, four hundred ninety million, four hundred forty thousand, nine hundred seventy-five".