22312731485 has 8 divisors (see below), whose sum is σ = 29209394016. Its totient is φ = 16227441040.

The previous prime is 22312731443. The next prime is 22312731487. The reversal of 22312731485 is 58413721322.

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

It is not a de Polignac number, because 22312731485 - 2¹⁸ = 22312469341 is a prime.

It is a super-3 number, since 3×22312731485³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312731487) 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, 202842959 + ... + 202843068.

It is an arithmetic number, because the mean of its divisors is an integer number (3651174252).

Almost surely, 2^22312731485 is an apocalyptic number.

It is an amenable number.

22312731485 is a deficient number, since it is larger than the sum of its proper divisors (6896662531).

22312731485 is a wasteful number, since it uses less digits than its factorization.

22312731485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405686043.

The product of its digits is 80640, while the sum is 38.

The spelling of 22312731485 in words is "twenty-two billion, three hundred twelve million, seven hundred thirty-one thousand, four hundred eighty-five".