26438740775 has 6 divisors (see below), whose sum is σ = 32784038592. Its totient is φ = 21150992600.

The previous prime is 26438740751. The next prime is 26438740777. The reversal of 26438740775 is 57704783462.

It is not a de Polignac number, because 26438740775 - 2²² = 26434546471 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 (26438740777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528774791 + ... + 528774840.

It is an arithmetic number, because the mean of its divisors is an integer number (5464006432).

Almost surely, 2^26438740775 is an apocalyptic number.

26438740775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26438740775 is a deficient number, since it is larger than the sum of its proper divisors (6345297817).

26438740775 is a wasteful number, since it uses less digits than its factorization.

26438740775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057549641 (or 1057549636 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 26438740775 in words is "twenty-six billion, four hundred thirty-eight million, seven hundred forty thousand, seven hundred seventy-five".