73528321037 has 4 divisors (see below), whose sum is σ = 73551280320. Its totient is φ = 73505361756.

The previous prime is 73528321021. The next prime is 73528321051. The reversal of 73528321037 is 73012382537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73528321037 - 2⁴ = 73528321021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73528320985 and 73528321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73528321067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11474837 + ... + 11481242.

It is an arithmetic number, because the mean of its divisors is an integer number (18387820080).

Almost surely, 2^73528321037 is an apocalyptic number.

It is an amenable number.

73528321037 is a deficient number, since it is larger than the sum of its proper divisors (22959283).

73528321037 is a wasteful number, since it uses less digits than its factorization.

73528321037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22959282.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 73528321037 in words is "seventy-three billion, five hundred twenty-eight million, three hundred twenty-one thousand, thirty-seven".