73545444027545 has 128 divisors (see below), whose sum is σ = 110756031160320. Its totient is φ = 45759271680000.

The previous prime is 73545444027529. The next prime is 73545444027551. The reversal of 73545444027545 is 54572044454537.

It is a happy number.

It is not a de Polignac number, because 73545444027545 - 2⁴ = 73545444027529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 869793020 + ... + 869877570.

It is an arithmetic number, because the mean of its divisors is an integer number (865281493440).

Almost surely, 2^{73545444027545} is an apocalyptic number.

It is an amenable number.

73545444027545 is a deficient number, since it is larger than the sum of its proper divisors (37210587132775).

73545444027545 is a wasteful number, since it uses less digits than its factorization.

73545444027545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85207.

The product of its (nonzero) digits is 188160000, while the sum is 59.

The spelling of 73545444027545 in words is "seventy-three trillion, five hundred forty-five billion, four hundred forty-four million, twenty-seven thousand, five hundred forty-five".