73520064425 has 12 divisors (see below), whose sum is σ = 95963032080. Its totient is φ = 55720469520.

The previous prime is 73520064419. The next prime is 73520064427. The reversal of 73520064425 is 52446002537.

It is not a de Polignac number, because 73520064425 - 2¹² = 73520060329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73520064427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77389067 + ... + 77390016.

It is an arithmetic number, because the mean of its divisors is an integer number (7996919340).

Almost surely, 2^73520064425 is an apocalyptic number.

It is an amenable number.

73520064425 is a deficient number, since it is larger than the sum of its proper divisors (22442967655).

73520064425 is a wasteful number, since it uses less digits than its factorization.

73520064425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154779112 (or 154779107 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 73520064425 in words is "seventy-three billion, five hundred twenty million, sixty-four thousand, four hundred twenty-five".