73528321038 has 32 divisors (see below), whose sum is σ = 149022720000. Its totient is φ = 24182532096.

The previous prime is 73528321021. The next prime is 73528321051. The reversal of 73528321038 is 83012382537.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286963 + ... + 478961.

It is an arithmetic number, because the mean of its divisors is an integer number (4656960000).

Almost surely, 2^73528321038 is an apocalyptic number.

73528321038 is an abundant number, since it is smaller than the sum of its proper divisors (75494398962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73528321038 is a wasteful number, since it uses less digits than its factorization.

73528321038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192856.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 73528321038 in words is "seventy-three billion, five hundred twenty-eight million, three hundred twenty-one thousand, thirty-eight".