42520604134 has 4 divisors (see below), whose sum is σ = 63780906204. Its totient is φ = 21260302066.

The previous prime is 42520604131. The next prime is 42520604143. The reversal of 42520604134 is 43140602524.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 42520604096 and 42520604105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520604131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10630151032 + ... + 10630151035.

It is an arithmetic number, because the mean of its divisors is an integer number (15945226551).

Almost surely, 2^42520604134 is an apocalyptic number.

42520604134 is a deficient number, since it is larger than the sum of its proper divisors (21260302070).

42520604134 is a wasteful number, since it uses less digits than its factorization.

42520604134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260302069.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 42520604134 in words is "forty-two billion, five hundred twenty million, six hundred four thousand, one hundred thirty-four".