42340134263 has 4 divisors (see below), whose sum is σ = 48388724880. Its totient is φ = 36291543648.

The previous prime is 42340134253. The next prime is 42340134271. The reversal of 42340134263 is 36243104324.

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 42340134263 - 2²⁸ = 42071698807 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 (42340134203) 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, 3024295298 + ... + 3024295311.

It is an arithmetic number, because the mean of its divisors is an integer number (12097181220).

Almost surely, 2^42340134263 is an apocalyptic number.

42340134263 is a deficient number, since it is larger than the sum of its proper divisors (6048590617).

42340134263 is an equidigital number, since it uses as much as digits as its factorization.

42340134263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048590616.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 42340134263 its reverse (36243104324), we get a palindrome (78583238587).

The spelling of 42340134263 in words is "forty-two billion, three hundred forty million, one hundred thirty-four thousand, two hundred sixty-three".