26240348761 has 4 divisors (see below), whose sum is σ = 28625835024. Its totient is φ = 23854862500.

The previous prime is 26240348699. The next prime is 26240348801. The reversal of 26240348761 is 16784304262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26240348761 - 2⁷ = 26240348633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26240348161) 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 3 ways as a sum of consecutive naturals, for example, 1192743115 + ... + 1192743136.

It is an arithmetic number, because the mean of its divisors is an integer number (7156458756).

Almost surely, 2^26240348761 is an apocalyptic number.

It is an amenable number.

26240348761 is a deficient number, since it is larger than the sum of its proper divisors (2385486263).

26240348761 is a wasteful number, since it uses less digits than its factorization.

26240348761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385486262.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 26240348761 in words is "twenty-six billion, two hundred forty million, three hundred forty-eight thousand, seven hundred sixty-one".