22640427371 has 4 divisors (see below), whose sum is σ = 22642309200. Its totient is φ = 22638545544.

The previous prime is 22640427343. The next prime is 22640427413. The reversal of 22640427371 is 17372404622.

It is a happy number.

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 22640427371 - 2¹⁴ = 22640410987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22640477371) 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, 922751 + ... + 946968.

It is an arithmetic number, because the mean of its divisors is an integer number (5660577300).

Almost surely, 2^22640427371 is an apocalyptic number.

22640427371 is a deficient number, since it is larger than the sum of its proper divisors (1881829).

22640427371 is a wasteful number, since it uses less digits than its factorization.

22640427371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881828.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 22640427371 in words is "twenty-two billion, six hundred forty million, four hundred twenty-seven thousand, three hundred seventy-one".