42000424042399 has 4 divisors (see below), whose sum is σ = 42002316913480. Its totient is φ = 41998531171320.

The previous prime is 42000424042387. The next prime is 42000424042429. The reversal of 42000424042399 is 99324042400024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42000424042399 - 2²⁷ = 42000289824671 is a prime.

It is a super-2 number, since 2×42000424042399² (a number of 28 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 (42000424042349) 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, 946402257 + ... + 946446634.

It is an arithmetic number, because the mean of its divisors is an integer number (10500579228370).

Almost surely, 2^{42000424042399} is an apocalyptic number.

42000424042399 is a deficient number, since it is larger than the sum of its proper divisors (1892871081).

42000424042399 is a wasteful number, since it uses less digits than its factorization.

42000424042399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892871080.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 42000424042399 in words is "forty-two trillion, four hundred twenty-four million, forty-two thousand, three hundred ninety-nine".