42209610423 has 4 divisors (see below), whose sum is σ = 56279480568. Its totient is φ = 28139740280.

The previous prime is 42209610389. The next prime is 42209610427. The reversal of 42209610423 is 32401690224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42209610423 - 2²⁶ = 42142501559 is a prime.

It is a super-2 number, since 2×42209610423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42209610427) 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, 7034935068 + ... + 7034935073.

It is an arithmetic number, because the mean of its divisors is an integer number (14069870142).

Almost surely, 2^42209610423 is an apocalyptic number.

42209610423 is a deficient number, since it is larger than the sum of its proper divisors (14069870145).

42209610423 is a wasteful number, since it uses less digits than its factorization.

42209610423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14069870144.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 42209610423 in words is "forty-two billion, two hundred nine million, six hundred ten thousand, four hundred twenty-three".