73538168036 has 6 divisors (see below), whose sum is σ = 128691794070. Its totient is φ = 36769084016.

The previous prime is 73538168029. The next prime is 73538168059. The reversal of 73538168036 is 63086183537.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54962113600 + 18576054436 = 234440^2 + 136294^2 .

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 as a sum of consecutive naturals, namely, 9192271001 + ... + 9192271008.

It is an arithmetic number, because the mean of its divisors is an integer number (21448632345).

Almost surely, 2^73538168036 is an apocalyptic number.

It is an amenable number.

73538168036 is a deficient number, since it is larger than the sum of its proper divisors (55153626034).

73538168036 is a wasteful number, since it uses less digits than its factorization.

73538168036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384542013 (or 18384542011 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 73538168036 in words is "seventy-three billion, five hundred thirty-eight million, one hundred sixty-eight thousand, thirty-six".