73534243145 has 32 divisors (see below), whose sum is σ = 96717404160. Its totient is φ = 53227477440.

The previous prime is 73534243039. The next prime is 73534243147. The reversal of 73534243145 is 54134243537.

It is not a de Polignac number, because 73534243145 - 2⁸ = 73534242889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73534243147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16169762 + ... + 16174308.

It is an arithmetic number, because the mean of its divisors is an integer number (3022418880).

Almost surely, 2^73534243145 is an apocalyptic number.

It is an amenable number.

73534243145 is a deficient number, since it is larger than the sum of its proper divisors (23183161015).

73534243145 is a wasteful number, since it uses less digits than its factorization.

73534243145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885.

The product of its digits is 604800, while the sum is 41.

The spelling of 73534243145 in words is "seventy-three billion, five hundred thirty-four million, two hundred forty-three thousand, one hundred forty-five".