73963836938 has 4 divisors (see below), whose sum is σ = 110945755410. Its totient is φ = 36981918468.

The previous prime is 73963836887. The next prime is 73963837001. The reversal of 73963836938 is 83963836937.

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

It can be written as a sum of positive squares in only one way, i.e., 43566960529 + 30396876409 = 208727^2 + 174347^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18490959233 + ... + 18490959236.

Almost surely, 2^73963836938 is an apocalyptic number.

73963836938 is a deficient number, since it is larger than the sum of its proper divisors (36981918472).

73963836938 is a wasteful number, since it uses less digits than its factorization.

73963836938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36981918471.

The product of its digits is 105815808, while the sum is 65.

Subtracting 73963836938 from its reverse (83963836937), we obtain a palindrome (9999999999).

The spelling of 73963836938 in words is "seventy-three billion, nine hundred sixty-three million, eight hundred thirty-six thousand, nine hundred thirty-eight".