73532128847 has 4 divisors (see below), whose sum is σ = 73701949440. Its totient is φ = 73362308256.

The previous prime is 73532128843. The next prime is 73532128849. The reversal of 73532128847 is 74882123537.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73532128847 - 2² = 73532128843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73532128795 and 73532128804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73532128843) 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, 84909647 + ... + 84910512.

It is an arithmetic number, because the mean of its divisors is an integer number (18425487360).

Almost surely, 2^73532128847 is an apocalyptic number.

73532128847 is a deficient number, since it is larger than the sum of its proper divisors (169820593).

73532128847 is a wasteful number, since it uses less digits than its factorization.

73532128847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169820592.

The product of its digits is 2257920, while the sum is 50.

The spelling of 73532128847 in words is "seventy-three billion, five hundred thirty-two million, one hundred twenty-eight thousand, eight hundred forty-seven".