42107888878043 has 4 divisors (see below), whose sum is σ = 42109986844848. Its totient is φ = 42105790911240.

The previous prime is 42107888878039. The next prime is 42107888878049. The reversal of 42107888878043 is 34087888870124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42107888878043 - 2² = 42107888878039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42107888878049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048953296 + ... + 1048993437.

It is an arithmetic number, because the mean of its divisors is an integer number (10527496711212).

Almost surely, 2^{42107888878043} is an apocalyptic number.

42107888878043 is a deficient number, since it is larger than the sum of its proper divisors (2097966805).

42107888878043 is a wasteful number, since it uses less digits than its factorization.

42107888878043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097966804.

The product of its (nonzero) digits is 154140672, while the sum is 68.

The spelling of 42107888878043 in words is "forty-two trillion, one hundred seven billion, eight hundred eighty-eight million, eight hundred seventy-eight thousand, forty-three".