26227890907 has 4 divisors (see below), whose sum is σ = 27073951936. Its totient is φ = 25381829880.

The previous prime is 26227890881. The next prime is 26227890917. The reversal of 26227890907 is 70909872262.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26227890907 is a prime.

It is a super-2 number, since 2×26227890907² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26227890917) 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, 423030468 + ... + 423030529.

It is an arithmetic number, because the mean of its divisors is an integer number (6768487984).

Almost surely, 2^26227890907 is an apocalyptic number.

26227890907 is a deficient number, since it is larger than the sum of its proper divisors (846061029).

26227890907 is an equidigital number, since it uses as much as digits as its factorization.

26227890907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846061028.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 26227890907 in words is "twenty-six billion, two hundred twenty-seven million, eight hundred ninety thousand, nine hundred seven".