42382097021 has 4 divisors (see below), whose sum is σ = 46235014944. Its totient is φ = 38529179100.

The previous prime is 42382096979. The next prime is 42382097041. The reversal of 42382097021 is 12079028324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42382097021 - 2¹⁸ = 42381834877 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 (42382097041) 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 3 ways as a sum of consecutive naturals, for example, 1926458945 + ... + 1926458966.

It is an arithmetic number, because the mean of its divisors is an integer number (11558753736).

Almost surely, 2^42382097021 is an apocalyptic number.

It is an amenable number.

42382097021 is a deficient number, since it is larger than the sum of its proper divisors (3852917923).

42382097021 is a wasteful number, since it uses less digits than its factorization.

42382097021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852917922.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 42382097021 in words is "forty-two billion, three hundred eighty-two million, ninety-seven thousand, twenty-one".