42254864861 has 8 divisors (see below), whose sum is σ = 46098200064. Its totient is φ = 38411860320.

The previous prime is 42254864849. The next prime is 42254864887. The reversal of 42254864861 is 16846845224.

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 42254864861 - 2⁶ = 42254864797 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 (42254864891) 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 7 ways as a sum of consecutive naturals, for example, 238961 + ... + 376313.

It is an arithmetic number, because the mean of its divisors is an integer number (5762275008).

Almost surely, 2^42254864861 is an apocalyptic number.

It is an amenable number.

42254864861 is a deficient number, since it is larger than the sum of its proper divisors (3843335203).

42254864861 is a wasteful number, since it uses less digits than its factorization.

42254864861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165331.

The product of its digits is 2949120, while the sum is 50.

The spelling of 42254864861 in words is "forty-two billion, two hundred fifty-four million, eight hundred sixty-four thousand, eight hundred sixty-one".