42144695091798 has 32 divisors (see below), whose sum is σ = 90786428613216. Its totient is φ = 12965707177728.

The previous prime is 42144695091769. The next prime is 42144695091859. The reversal of 42144695091798 is 89719059644124.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38864061 + ... + 39933752.

It is an arithmetic number, because the mean of its divisors is an integer number (2837075894163).

Almost surely, 2^{42144695091798} is an apocalyptic number.

42144695091798 is an abundant number, since it is smaller than the sum of its proper divisors (48641733521418).

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

42144695091798 is a wasteful number, since it uses less digits than its factorization.

42144695091798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78804688.

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 42144695091798 in words is "forty-two trillion, one hundred forty-four billion, six hundred ninety-five million, ninety-one thousand, seven hundred ninety-eight".