22773486887 has 4 divisors (see below), whose sum is σ = 23972091480. Its totient is φ = 21574882296.

The previous prime is 22773486881. The next prime is 22773486893. The reversal of 22773486887 is 78868437722.

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

It is an interprime number because it is at equal distance from previous prime (22773486881) and next prime (22773486893).

It is a cyclic number.

It is not a de Polignac number, because 22773486887 - 2¹² = 22773482791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22773486881) 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, 599302268 + ... + 599302305.

It is an arithmetic number, because the mean of its divisors is an integer number (5993022870).

Almost surely, 2^22773486887 is an apocalyptic number.

22773486887 is a deficient number, since it is larger than the sum of its proper divisors (1198604593).

22773486887 is a wasteful number, since it uses less digits than its factorization.

22773486887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198604592.

The product of its digits is 50577408, while the sum is 62.

The spelling of 22773486887 in words is "twenty-two billion, seven hundred seventy-three million, four hundred eighty-six thousand, eight hundred eighty-seven".