42172093776834 has 64 divisors (see below), whose sum is σ = 107571432326400. Its totient is φ = 11996553164544.

The previous prime is 42172093776817. The next prime is 42172093777031. The reversal of 42172093776834 is 43867739027124.

42172093776834 is a `hidden beast` number, since 4 + 2 + 172 + 0 + 9 + 377 + 68 + 34 = 666.

42172093776834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 31 ways as a sum of consecutive naturals, for example, 243508167 + ... + 243681290.

It is an arithmetic number, because the mean of its divisors is an integer number (1680803630100).

Almost surely, 2^{42172093776834} is an apocalyptic number.

42172093776834 is an abundant number, since it is smaller than the sum of its proper divisors (65399338549566).

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

42172093776834 is a wasteful number, since it uses less digits than its factorization.

42172093776834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487189704 (or 487189698 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 63.

The spelling of 42172093776834 in words is "forty-two trillion, one hundred seventy-two billion, ninety-three million, seven hundred seventy-six thousand, eight hundred thirty-four".