42154405163 has 4 divisors (see below), whose sum is σ = 45397051728. Its totient is φ = 38911758600.

The previous prime is 42154405159. The next prime is 42154405177. The reversal of 42154405163 is 36150445124.

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

It is not a de Polignac number, because 42154405163 - 2² = 42154405159 is a prime.

It is a super-2 number, since 2×42154405163² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42154405123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1621323263 + ... + 1621323288.

It is an arithmetic number, because the mean of its divisors is an integer number (11349262932).

Almost surely, 2^42154405163 is an apocalyptic number.

42154405163 is a deficient number, since it is larger than the sum of its proper divisors (3242646565).

42154405163 is a wasteful number, since it uses less digits than its factorization.

42154405163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242646564.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 42154405163 in words is "forty-two billion, one hundred fifty-four million, four hundred five thousand, one hundred sixty-three".