42122420405 has 96 divisors (see below), whose sum is σ = 60136796160. Its totient is φ = 28118638080.

The previous prime is 42122420383. The next prime is 42122420413. The reversal of 42122420405 is 50402422124.

It is not a de Polignac number, because 42122420405 - 2¹⁴ = 42122404021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57465419 + ... + 57466151.

It is an arithmetic number, because the mean of its divisors is an integer number (626424960).

Almost surely, 2^42122420405 is an apocalyptic number.

It is an amenable number.

42122420405 is a deficient number, since it is larger than the sum of its proper divisors (18014375755).

42122420405 is a wasteful number, since it uses less digits than its factorization.

42122420405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 42122420405 its reverse (50402422124), we get a palindrome (92524842529).

The spelling of 42122420405 in words is "forty-two billion, one hundred twenty-two million, four hundred twenty thousand, four hundred five".