42154542111 has 16 divisors (see below), whose sum is σ = 61360421760. Its totient is φ = 25529572320.

The previous prime is 42154542091. The next prime is 42154542139. The reversal of 42154542111 is 11124545124.

It is not a de Polignac number, because 42154542111 - 2⁷ = 42154541983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154542151) 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 15 ways as a sum of consecutive naturals, for example, 419881 + ... + 510498.

It is an arithmetic number, because the mean of its divisors is an integer number (3835026360).

Almost surely, 2^42154542111 is an apocalyptic number.

42154542111 is a deficient number, since it is larger than the sum of its proper divisors (19205879649).

42154542111 is a wasteful number, since it uses less digits than its factorization.

42154542111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931766.

The product of its digits is 6400, while the sum is 30.

The spelling of 42154542111 in words is "forty-two billion, one hundred fifty-four million, five hundred forty-two thousand, one hundred eleven".