73501738945 has 8 divisors (see below), whose sum is σ = 90585927144. Its totient is φ = 57212164224.

The previous prime is 73501738927. The next prime is 73501738949. The reversal of 73501738945 is 54983710537.

It can be written as a sum of positive squares in 4 ways, for example, as 39280068864 + 34221670081 = 198192^2 + 184991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73501738945 - 2⁵ = 73501738913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73501738892 and 73501738901.

It is not an unprimeable number, because it can be changed into a prime (73501738949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198653164 + ... + 198653533.

It is an arithmetic number, because the mean of its divisors is an integer number (11323240893).

Almost surely, 2^73501738945 is an apocalyptic number.

It is an amenable number.

73501738945 is a deficient number, since it is larger than the sum of its proper divisors (17084188199).

73501738945 is a wasteful number, since it uses less digits than its factorization.

73501738945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397306739.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 73501738945 in words is "seventy-three billion, five hundred one million, seven hundred thirty-eight thousand, nine hundred forty-five".