42693839624 has 8 divisors (see below), whose sum is σ = 80050949310. Its totient is φ = 21346919808.

The previous prime is 42693839603. The next prime is 42693839647.

It is a happy number.

42693839624 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 41445630724 + 1248208900 = 203582^2 + 35330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42693839624² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42693839624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2668364969 + ... + 2668364984.

Almost surely, 2^42693839624 is an apocalyptic number.

It is an amenable number.

42693839624 is a deficient number, since it is larger than the sum of its proper divisors (37357109686).

42693839624 is a wasteful number, since it uses less digits than its factorization.

42693839624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336729959 (or 5336729955 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 56.

The spelling of 42693839624 in words is "forty-two billion, six hundred ninety-three million, eight hundred thirty-nine thousand, six hundred twenty-four".