22854128347 has 4 divisors (see below), whose sum is σ = 24198488856. Its totient is φ = 21509767840.

The previous prime is 22854128333. The next prime is 22854128369. The reversal of 22854128347 is 74382145822.

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 22854128347 - 2¹¹ = 22854126299 is a prime.

It is a super-2 number, since 2×22854128347² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22854128297 and 22854128306.

It is not an unprimeable number, because it can be changed into a prime (22854128317) 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, 672180229 + ... + 672180262.

It is an arithmetic number, because the mean of its divisors is an integer number (6049622214).

Almost surely, 2^22854128347 is an apocalyptic number.

22854128347 is a deficient number, since it is larger than the sum of its proper divisors (1344360509).

22854128347 is a wasteful number, since it uses less digits than its factorization.

22854128347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344360508.

The product of its digits is 860160, while the sum is 46.

The spelling of 22854128347 in words is "twenty-two billion, eight hundred fifty-four million, one hundred twenty-eight thousand, three hundred forty-seven".