42107844869 has 4 divisors (see below), whose sum is σ = 42137944800. Its totient is φ = 42077744940.

The previous prime is 42107844841. The next prime is 42107844893. The reversal of 42107844869 is 96844870124.

42107844869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42107844869 - 2⁸ = 42107844613 is a prime.

It is a super-2 number, since 2×42107844869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42107844869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42107844839) 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, 15047867 + ... + 15050664.

It is an arithmetic number, because the mean of its divisors is an integer number (10534486200).

Almost surely, 2^42107844869 is an apocalyptic number.

It is an amenable number.

42107844869 is a deficient number, since it is larger than the sum of its proper divisors (30099931).

42107844869 is a wasteful number, since it uses less digits than its factorization.

42107844869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30099930.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 42107844869 in words is "forty-two billion, one hundred seven million, eight hundred forty-four thousand, eight hundred sixty-nine".