42001794012 has 12 divisors (see below), whose sum is σ = 98004186056. Its totient is φ = 14000598000.

The previous prime is 42001794007. The next prime is 42001794019. The reversal of 42001794012 is 21049710024.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42001794012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001794019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750074739 + ... + 1750074762.

Almost surely, 2^42001794012 is an apocalyptic number.

It is an amenable number.

42001794012 is an abundant number, since it is smaller than the sum of its proper divisors (56002392044).

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

42001794012 is a wasteful number, since it uses less digits than its factorization.

42001794012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500149508 (or 3500149506 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 42001794012 in words is "forty-two billion, one million, seven hundred ninety-four thousand, twelve".