22118673487 has 4 divisors (see below), whose sum is σ = 22229822800. Its totient is φ = 22007524176.

The previous prime is 22118673461. The next prime is 22118673503. The reversal of 22118673487 is 78437681122.

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 22118673487 - 2⁷ = 22118673359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22118673487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118670487) 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, 55574358 + ... + 55574755.

It is an arithmetic number, because the mean of its divisors is an integer number (5557455700).

Almost surely, 2^22118673487 is an apocalyptic number.

22118673487 is a deficient number, since it is larger than the sum of its proper divisors (111149313).

22118673487 is a wasteful number, since it uses less digits than its factorization.

22118673487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111149312.

The product of its digits is 903168, while the sum is 49.

The spelling of 22118673487 in words is "twenty-two billion, one hundred eighteen million, six hundred seventy-three thousand, four hundred eighty-seven".