26540771263 has 8 divisors (see below), whose sum is σ = 28121440032. Its totient is φ = 24962263296.

The previous prime is 26540771249. The next prime is 26540771311. The reversal of 26540771263 is 36217704562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26540771263 - 2¹³ = 26540763071 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 (26540771063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514870 + ... + 564067.

It is an arithmetic number, because the mean of its divisors is an integer number (3515180004).

Almost surely, 2^26540771263 is an apocalyptic number.

26540771263 is a deficient number, since it is larger than the sum of its proper divisors (1580668769).

26540771263 is a wasteful number, since it uses less digits than its factorization.

26540771263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080401.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 26540771263 in words is "twenty-six billion, five hundred forty million, seven hundred seventy-one thousand, two hundred sixty-three".