42018965793 has 48 divisors (see below), whose sum is σ = 71083657216. Its totient is φ = 23417462880.

The previous prime is 42018965777. The next prime is 42018965827. The reversal of 42018965793 is 39756981024.

42018965793 is a `hidden beast` number, since 420 + 1 + 89 + 6 + 57 + 93 = 666.

It is not a de Polignac number, because 42018965793 - 2⁴ = 42018965777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42018965393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1860696 + ... + 1883142.

It is a 1-persistent number, because it is pandigital, but 2⋅42018965793 = 84037931586 is not.

Almost surely, 2^42018965793 is an apocalyptic number.

42018965793 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42018965793 is a deficient number, since it is larger than the sum of its proper divisors (29064691423).

42018965793 is a wasteful number, since it uses less digits than its factorization.

42018965793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23194 (or 23191 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 42018965793 in words is "forty-two billion, eighteen million, nine hundred sixty-five thousand, seven hundred ninety-three".