42491099109936 has 80 divisors (see below), whose sum is σ = 109972730937600. Its totient is φ = 14137385982720.

The previous prime is 42491099109827. The next prime is 42491099110013. The reversal of 42491099109936 is 63990199019424.

42491099109936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83312181 + ... + 83820651.

It is an arithmetic number, because the mean of its divisors is an integer number (1374659136720).

Almost surely, 2^{42491099109936} is an apocalyptic number.

It is an amenable number.

42491099109936 is an abundant number, since it is smaller than the sum of its proper divisors (67481631827664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42491099109936 is a wasteful number, since it uses less digits than its factorization.

42491099109936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511714 (or 511708 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 66.

The spelling of 42491099109936 in words is "forty-two trillion, four hundred ninety-one billion, ninety-nine million, one hundred nine thousand, nine hundred thirty-six".