42054399983861 has 8 divisors (see below), whose sum is σ = 42087552892320. Its totient is φ = 42021259414992.

The previous prime is 42054399983801. The next prime is 42054399983873. The reversal of 42054399983861 is 16838999345024.

It is a happy number.

42054399983861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42054399983861 - 2¹⁸ = 42054399721717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054399983801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3739910 + ... + 9904328.

It is an arithmetic number, because the mean of its divisors is an integer number (5260944111540).

Almost surely, 2^{42054399983861} is an apocalyptic number.

It is an amenable number.

42054399983861 is a deficient number, since it is larger than the sum of its proper divisors (33152908459).

42054399983861 is a wasteful number, since it uses less digits than its factorization.

42054399983861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169795.

The product of its (nonzero) digits is 403107840, while the sum is 71.

The spelling of 42054399983861 in words is "forty-two trillion, fifty-four billion, three hundred ninety-nine million, nine hundred eighty-three thousand, eight hundred sixty-one".