42043154045455 has 4 divisors (see below), whose sum is σ = 50451784854552. Its totient is φ = 33634523236360.

The previous prime is 42043154045447. The next prime is 42043154045483. The reversal of 42043154045455 is 55454045134024.

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

It is not a de Polignac number, because 42043154045455 - 2³ = 42043154045447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204315404541 + ... + 4204315404550.

It is an arithmetic number, because the mean of its divisors is an integer number (12612946213638).

Almost surely, 2^{42043154045455} is an apocalyptic number.

42043154045455 is a deficient number, since it is larger than the sum of its proper divisors (8408630809097).

42043154045455 is an equidigital number, since it uses as much as digits as its factorization.

42043154045455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408630809096.

The product of its (nonzero) digits is 3840000, while the sum is 46.

Adding to 42043154045455 its reverse (55454045134024), we get a palindrome (97497199179479).

The spelling of 42043154045455 in words is "forty-two trillion, forty-three billion, one hundred fifty-four million, forty-five thousand, four hundred fifty-five".