42221698543 has 4 divisors (see below), whose sum is σ = 42222185968. Its totient is φ = 42221211120.

The previous prime is 42221698537. The next prime is 42221698549. The reversal of 42221698543 is 34589612224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (42221698537) and next prime (42221698549).

It is a cyclic number.

It is not a de Polignac number, because 42221698543 - 2²⁵ = 42188144111 is a prime.

It is a super-3 number, since 3×42221698543³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42221698493 and 42221698502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221698549) 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, 74718 + ... + 300043.

It is an arithmetic number, because the mean of its divisors is an integer number (10555546492).

Almost surely, 2^42221698543 is an apocalyptic number.

42221698543 is a deficient number, since it is larger than the sum of its proper divisors (487425).

42221698543 is a wasteful number, since it uses less digits than its factorization.

42221698543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487424.

The product of its digits is 829440, while the sum is 46.

The spelling of 42221698543 in words is "forty-two billion, two hundred twenty-one million, six hundred ninety-eight thousand, five hundred forty-three".