42043427442165 has 32 divisors (see below), whose sum is σ = 67784752861056. Its totient is φ = 22251413882880.

The previous prime is 42043427442109. The next prime is 42043427442281. The reversal of 42043427442165 is 56124472434024.

It is not a de Polignac number, because 42043427442165 - 2⁶ = 42043427442101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81473037 + ... + 81987453.

It is an arithmetic number, because the mean of its divisors is an integer number (2118273526908).

Almost surely, 2^{42043427442165} is an apocalyptic number.

It is an amenable number.

42043427442165 is a deficient number, since it is larger than the sum of its proper divisors (25741325418891).

42043427442165 is a wasteful number, since it uses less digits than its factorization.

42043427442165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556149.

The product of its (nonzero) digits is 5160960, while the sum is 48.

Adding to 42043427442165 its reverse (56124472434024), we get a palindrome (98167899876189).

The spelling of 42043427442165 in words is "forty-two trillion, forty-three billion, four hundred twenty-seven million, four hundred forty-two thousand, one hundred sixty-five".