42224664251 has 16 divisors (see below), whose sum is σ = 53385205248. Its totient is φ = 32438918400.

The previous prime is 42224664023. The next prime is 42224664263. The reversal of 42224664251 is 15246642224.

It is not a de Polignac number, because 42224664251 - 2²⁶ = 42157555387 is a prime.

It is a super-2 number, since 2×42224664251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42224664551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3856310 + ... + 3867243.

It is an arithmetic number, because the mean of its divisors is an integer number (3336575328).

Almost surely, 2^42224664251 is an apocalyptic number.

42224664251 is a deficient number, since it is larger than the sum of its proper divisors (11160540997).

42224664251 is a wasteful number, since it uses less digits than its factorization.

42224664251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723642.

The product of its digits is 184320, while the sum is 38.

The spelling of 42224664251 in words is "forty-two billion, two hundred twenty-four million, six hundred sixty-four thousand, two hundred fifty-one".