42794421519 has 8 divisors (see below), whose sum is σ = 58601370160. Its totient is φ = 27758543616.

The previous prime is 42794421517. The next prime is 42794421557. The reversal of 42794421519 is 91512449724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42794421519 - 2¹ = 42794421517 is a prime.

It is a super-2 number, since 2×42794421519² (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 (42794421517) 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, 192767554 + ... + 192767775.

It is an arithmetic number, because the mean of its divisors is an integer number (7325171270).

Almost surely, 2^42794421519 is an apocalyptic number.

42794421519 is a deficient number, since it is larger than the sum of its proper divisors (15806948641).

42794421519 is a wasteful number, since it uses less digits than its factorization.

42794421519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385535369.

The product of its digits is 725760, while the sum is 48.

The spelling of 42794421519 in words is "forty-two billion, seven hundred ninety-four million, four hundred twenty-one thousand, five hundred nineteen".