42043044099 has 32 divisors (see below), whose sum is σ = 67380056064. Its totient is φ = 22810919040.

The previous prime is 42043044079. The next prime is 42043044101. The reversal of 42043044099 is 99044034024.

It is a happy number.

It is not a de Polignac number, because 42043044099 - 2⁸ = 42043043843 is a prime.

It is a super-2 number, since 2×42043044099² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42043044079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574764 + ... + 643769.

It is an arithmetic number, because the mean of its divisors is an integer number (2105626752).

Almost surely, 2^42043044099 is an apocalyptic number.

42043044099 is a deficient number, since it is larger than the sum of its proper divisors (25337011965).

42043044099 is a wasteful number, since it uses less digits than its factorization.

42043044099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218627.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 42043044099 in words is "forty-two billion, forty-three million, forty-four thousand, ninety-nine".