73545275020613 has 6 divisors (see below), whose sum is σ = 80839021303782. Its totient is φ = 66859340927720.

The previous prime is 73545275020589. The next prime is 73545275020631. The reversal of 73545275020613 is 31602057254537.

It can be written as a sum of positive squares in only one way, i.e., 41426498340964 + 32118776679649 = 6436342^2 + 5667343^2 .

It is not a de Polignac number, because 73545275020613 - 2⁴² = 69147228509509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73545275070613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303906095006 + ... + 303906095247.

It is an arithmetic number, because the mean of its divisors is an integer number (13473170217297).

Almost surely, 2^{73545275020613} is an apocalyptic number.

It is an amenable number.

73545275020613 is a deficient number, since it is larger than the sum of its proper divisors (7293746283169).

73545275020613 is a wasteful number, since it uses less digits than its factorization.

73545275020613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607812190275 (or 607812190264 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 50.

The spelling of 73545275020613 in words is "seventy-three trillion, five hundred forty-five billion, two hundred seventy-five million, twenty thousand, six hundred thirteen".