42519935916 has 108 divisors (see below), whose sum is σ = 117095893824. Its totient is φ = 12994084800.

The previous prime is 42519935891. The next prime is 42519935963. The reversal of 42519935916 is 61953991524.

42519935916 is a `hidden beast` number, since 4 + 2 + 519 + 9 + 35 + 91 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 350106 + ... + 455646.

Almost surely, 2^42519935916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42519935916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58547946912).

42519935916 is an abundant number, since it is smaller than the sum of its proper divisors (74575957908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42519935916 is a wasteful number, since it uses less digits than its factorization.

42519935916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105620 (or 105596 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 54.

The spelling of 42519935916 in words is "forty-two billion, five hundred nineteen million, nine hundred thirty-five thousand, nine hundred sixteen".