26190772259 has 4 divisors (see below), whose sum is σ = 26506323816. Its totient is φ = 25875220704.

The previous prime is 26190772253. The next prime is 26190772301. The reversal of 26190772259 is 95227709162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26190772259 - 2²⁰ = 26189723683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26190772253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157775654 + ... + 157775819.

It is an arithmetic number, because the mean of its divisors is an integer number (6626580954).

Almost surely, 2^26190772259 is an apocalyptic number.

26190772259 is a deficient number, since it is larger than the sum of its proper divisors (315551557).

26190772259 is an equidigital number, since it uses as much as digits as its factorization.

26190772259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315551556.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 26190772259 in words is "twenty-six billion, one hundred ninety million, seven hundred seventy-two thousand, two hundred fifty-nine".