26264227421 has 4 divisors (see below), whose sum is σ = 27646555200. Its totient is φ = 24881899644.

The previous prime is 26264227417. The next prime is 26264227463. The reversal of 26264227421 is 12472246262.

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 26264227421 - 2² = 26264227417 is a prime.

It is a super-2 number, since 2×26264227421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26264227411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691163861 + ... + 691163898.

It is an arithmetic number, because the mean of its divisors is an integer number (6911638800).

Almost surely, 2^26264227421 is an apocalyptic number.

It is an amenable number.

26264227421 is a deficient number, since it is larger than the sum of its proper divisors (1382327779).

26264227421 is a wasteful number, since it uses less digits than its factorization.

26264227421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382327778.

The product of its digits is 129024, while the sum is 38.

The spelling of 26264227421 in words is "twenty-six billion, two hundred sixty-four million, two hundred twenty-seven thousand, four hundred twenty-one".