42340451523 has 8 divisors (see below), whose sum is σ = 59425195200. Its totient is φ = 26741337768.

The previous prime is 42340451519. The next prime is 42340451563. The reversal of 42340451523 is 32515404324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42340451523 - 2² = 42340451519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42340451513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371407413 + ... + 371407526.

It is an arithmetic number, because the mean of its divisors is an integer number (7428149400).

Almost surely, 2^42340451523 is an apocalyptic number.

42340451523 is a deficient number, since it is larger than the sum of its proper divisors (17084743677).

42340451523 is a wasteful number, since it uses less digits than its factorization.

42340451523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742814961.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 42340451523 its reverse (32515404324), we get a palindrome (74855855847).

The spelling of 42340451523 in words is "forty-two billion, three hundred forty million, four hundred fifty-one thousand, five hundred twenty-three".