22456743547 has 8 divisors (see below), whose sum is σ = 25666500096. Its totient is φ = 19247399592.

The previous prime is 22456743541. The next prime is 22456743563. The reversal of 22456743547 is 74534765422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22456743547 - 2¹¹ = 22456741499 is a prime.

It is a super-2 number, since 2×22456743547² (a number of 22 digits) contains 22 as substring.

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 22456743547.

It is not an unprimeable number, because it can be changed into a prime (22456743541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23928 + ... + 213274.

It is an arithmetic number, because the mean of its divisors is an integer number (3208312512).

Almost surely, 2^22456743547 is an apocalyptic number.

22456743547 is a deficient number, since it is larger than the sum of its proper divisors (3209756549).

22456743547 is a wasteful number, since it uses less digits than its factorization.

22456743547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206297.

The product of its digits is 5644800, while the sum is 49.

The spelling of 22456743547 in words is "twenty-two billion, four hundred fifty-six million, seven hundred forty-three thousand, five hundred forty-seven".