42605818374729 has 4 divisors (see below), whose sum is σ = 56807757832976. Its totient is φ = 28403878916484.

The previous prime is 42605818374697. The next prime is 42605818374827. The reversal of 42605818374729 is 92747381850624.

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 not a de Polignac number, because 42605818374729 - 2⁵ = 42605818374697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42605818374729.

It is not an unprimeable number, because it can be changed into a prime (42605818374629) 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, 7100969729119 + ... + 7100969729124.

It is an arithmetic number, because the mean of its divisors is an integer number (14201939458244).

It is a 1-persistent number, because it is pandigital, but 2⋅42605818374729 = 85211636749458 is not.

Almost surely, 2^{42605818374729} is an apocalyptic number.

It is an amenable number.

42605818374729 is a deficient number, since it is larger than the sum of its proper divisors (14201939458247).

42605818374729 is a wasteful number, since it uses less digits than its factorization.

42605818374729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14201939458246.

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 42605818374729 in words is "forty-two trillion, six hundred five billion, eight hundred eighteen million, three hundred seventy-four thousand, seven hundred twenty-nine".