73132432748561 has 24 divisors (see below), whose sum is σ = 77346030199680. Its totient is φ = 69138122036256.

The previous prime is 73132432748549. The next prime is 73132432748591. The reversal of 73132432748561 is 16584723423137.

It is not a de Polignac number, because 73132432748561 - 2¹⁰ = 73132432747537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73132432748497 and 73132432748506.

It is not an unprimeable number, because it can be changed into a prime (73132432748521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397541960 + ... + 397725878.

It is an arithmetic number, because the mean of its divisors is an integer number (3222751258320).

Almost surely, 2^{73132432748561} is an apocalyptic number.

It is an amenable number.

73132432748561 is a deficient number, since it is larger than the sum of its proper divisors (4213597451119).

73132432748561 is a wasteful number, since it uses less digits than its factorization.

73132432748561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186261 (or 186242 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 56.

The spelling of 73132432748561 in words is "seventy-three trillion, one hundred thirty-two billion, four hundred thirty-two million, seven hundred forty-eight thousand, five hundred sixty-one".