22746917281 has 4 divisors (see below), whose sum is σ = 24814818864. Its totient is φ = 20679015700.

The previous prime is 22746917273. The next prime is 22746917299. The reversal of 22746917281 is 18271964722.

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 22746917281 - 2³ = 22746917273 is a prime.

It is a super-2 number, since 2×22746917281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22746917231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033950775 + ... + 1033950796.

It is an arithmetic number, because the mean of its divisors is an integer number (6203704716).

Almost surely, 2^22746917281 is an apocalyptic number.

It is an amenable number.

22746917281 is a deficient number, since it is larger than the sum of its proper divisors (2067901583).

22746917281 is a wasteful number, since it uses less digits than its factorization.

22746917281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067901582.

The product of its digits is 677376, while the sum is 49.

The spelling of 22746917281 in words is "twenty-two billion, seven hundred forty-six million, nine hundred seventeen thousand, two hundred eighty-one".