67038642038 has 4 divisors (see below), whose sum is σ = 100557963060. Its totient is φ = 33519321018.

The previous prime is 67038642007. The next prime is 67038642059. The reversal of 67038642038 is 83024683076.

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

It is a junction number, because it is equal to n+sod(n) for n = 67038641983 and 67038642001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16759660508 + ... + 16759660511.

It is an arithmetic number, because the mean of its divisors is an integer number (25139490765).

Almost surely, 2^67038642038 is an apocalyptic number.

67038642038 is a deficient number, since it is larger than the sum of its proper divisors (33519321022).

67038642038 is a wasteful number, since it uses less digits than its factorization.

67038642038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33519321021.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 67038642038 in words is "sixty-seven billion, thirty-eight million, six hundred forty-two thousand, thirty-eight".