26478885833 has 2 divisors, whose sum is σ = 26478885834. Its totient is φ = 26478885832.

The previous prime is 26478885821. The next prime is 26478885859. The reversal of 26478885833 is 33858887462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23572382089 + 2906503744 = 153533^2 + 53912^2 .

It is a cyclic number.

It is not a de Polignac number, because 26478885833 - 2²⁰ = 26477837257 is a prime.

It is a super-2 number, since 2×26478885833² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26478885883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13239442916 + 13239442917.

It is an arithmetic number, because the mean of its divisors is an integer number (13239442917).

Almost surely, 2^26478885833 is an apocalyptic number.

It is an amenable number.

26478885833 is a deficient number, since it is larger than the sum of its proper divisors (1).

26478885833 is an equidigital number, since it uses as much as digits as its factorization.

26478885833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61931520, while the sum is 62.

The spelling of 26478885833 in words is "twenty-six billion, four hundred seventy-eight million, eight hundred eighty-five thousand, eight hundred thirty-three".