42254157919 has 8 divisors (see below), whose sum is σ = 42296256288. Its totient is φ = 42212083200.

The previous prime is 42254157823. The next prime is 42254157937. The reversal of 42254157919 is 91975145224.

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 42254157919 - 2³¹ = 40106674271 is a prime.

It is a super-2 number, since 2×42254157919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254157949) 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, 7126134 + ... + 7132060.

It is an arithmetic number, because the mean of its divisors is an integer number (5287032036).

Almost surely, 2^42254157919 is an apocalyptic number.

42254157919 is a deficient number, since it is larger than the sum of its proper divisors (42098369).

42254157919 is a wasteful number, since it uses less digits than its factorization.

42254157919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825.

The product of its digits is 907200, while the sum is 49.

The spelling of 42254157919 in words is "forty-two billion, two hundred fifty-four million, one hundred fifty-seven thousand, nine hundred nineteen".