42219798251 has 8 divisors (see below), whose sum is σ = 43029028224. Its totient is φ = 41411036160.

The previous prime is 42219798233. The next prime is 42219798289. The reversal of 42219798251 is 15289791224.

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 42219798251 - 2²⁶ = 42152689387 is a prime.

It is a super-2 number, since 2×42219798251² (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 42219798251.

It is not an unprimeable number, because it can be changed into a prime (42219798211) 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, 68006 + ... + 298436.

It is an arithmetic number, because the mean of its divisors is an integer number (5378628528).

Almost surely, 2^42219798251 is an apocalyptic number.

42219798251 is a deficient number, since it is larger than the sum of its proper divisors (809229973).

42219798251 is a wasteful number, since it uses less digits than its factorization.

42219798251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233941.

The product of its digits is 725760, while the sum is 50.

The spelling of 42219798251 in words is "forty-two billion, two hundred nineteen million, seven hundred ninety-eight thousand, two hundred fifty-one".