42267286721 has 8 divisors (see below), whose sum is σ = 46557436224. Its totient is φ = 38051748720.

The previous prime is 42267286693. The next prime is 42267286843. The reversal of 42267286721 is 12768276224.

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 42267286721 - 2¹⁴ = 42267270337 is a prime.

It is a super-3 number, since 3×42267286721³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42267280721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18651686 + ... + 18653951.

It is an arithmetic number, because the mean of its divisors is an integer number (5819679528).

Almost surely, 2^42267286721 is an apocalyptic number.

It is an amenable number.

42267286721 is a deficient number, since it is larger than the sum of its proper divisors (4290149503).

42267286721 is a wasteful number, since it uses less digits than its factorization.

42267286721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37305751.

The product of its digits is 903168, while the sum is 47.

The spelling of 42267286721 in words is "forty-two billion, two hundred sixty-seven million, two hundred eighty-six thousand, seven hundred twenty-one".