42005819198901 has 16 divisors (see below), whose sum is σ = 57818219184128. Its totient is φ = 27098766788400.

The previous prime is 42005819198857. The next prime is 42005819198947. The reversal of 42005819198901 is 10989191850024.

It is not a de Polignac number, because 42005819198901 - 2¹⁰ = 42005819197877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42005819198951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13242001 + ... + 16104726.

It is an arithmetic number, because the mean of its divisors is an integer number (3613638699008).

Almost surely, 2^{42005819198901} is an apocalyptic number.

It is an amenable number.

42005819198901 is a deficient number, since it is larger than the sum of its proper divisors (15812399985227).

42005819198901 is a wasteful number, since it uses less digits than its factorization.

42005819198901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29362152.

The product of its (nonzero) digits is 1866240, while the sum is 57.

The spelling of 42005819198901 in words is "forty-two trillion, five billion, eight hundred nineteen million, one hundred ninety-eight thousand, nine hundred one".