42521612524 has 12 divisors (see below), whose sum is σ = 74523395464. Its totient is φ = 21229213824.

The previous prime is 42521612513. The next prime is 42521612597.

42521612524 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 42521612524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7895082 + ... + 7900465.

Almost surely, 2^42521612524 is an apocalyptic number.

It is an amenable number.

42521612524 is a deficient number, since it is larger than the sum of its proper divisors (32001782940).

42521612524 is a wasteful number, since it uses less digits than its factorization.

42521612524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796224 (or 15796222 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The spelling of 42521612524 in words is "forty-two billion, five hundred twenty-one million, six hundred twelve thousand, five hundred twenty-four".