73516845523 has 8 divisors (see below), whose sum is σ = 80204598720. Its totient is φ = 66829826280.

The previous prime is 73516845509. The next prime is 73516845587. The reversal of 73516845523 is 32554861537.

It is a happy number.

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 73516845523 - 2⁹ = 73516845011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73516845503) 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, 37536 + ... + 385282.

It is an arithmetic number, because the mean of its divisors is an integer number (10025574840).

Almost surely, 2^73516845523 is an apocalyptic number.

73516845523 is a deficient number, since it is larger than the sum of its proper divisors (6687753197).

73516845523 is a wasteful number, since it uses less digits than its factorization.

73516845523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366977.

The product of its digits is 3024000, while the sum is 49.

The spelling of 73516845523 in words is "seventy-three billion, five hundred sixteen million, eight hundred forty-five thousand, five hundred twenty-three".