42205323997 has 4 divisors (see below), whose sum is σ = 42458050656. Its totient is φ = 41952597340.

The previous prime is 42205323967. The next prime is 42205324069. The reversal of 42205323997 is 79932350224.

42205323997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42205323997 - 2³¹ = 40057840349 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 (42205323917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126363079 + ... + 126363412.

It is an arithmetic number, because the mean of its divisors is an integer number (10614512664).

Almost surely, 2^42205323997 is an apocalyptic number.

It is an amenable number.

42205323997 is a deficient number, since it is larger than the sum of its proper divisors (252726659).

42205323997 is a wasteful number, since it uses less digits than its factorization.

42205323997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252726658.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 42205323997 in words is "forty-two billion, two hundred five million, three hundred twenty-three thousand, nine hundred ninety-seven".