73021061073 has 8 divisors (see below), whose sum is σ = 99625633888. Its totient is φ = 47548597824.

The previous prime is 73021061063. The next prime is 73021061093. The reversal of 73021061073 is 37016012037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73021061073 - 2⁹ = 73021060561 is a prime.

It is a super-2 number, since 2×73021061073² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73021061073.

It is not an unprimeable number, because it can be changed into a prime (73021061023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283027240 + ... + 283027497.

It is an arithmetic number, because the mean of its divisors is an integer number (12453204236).

Almost surely, 2^73021061073 is an apocalyptic number.

It is an amenable number.

73021061073 is a deficient number, since it is larger than the sum of its proper divisors (26604572815).

73021061073 is a wasteful number, since it uses less digits than its factorization.

73021061073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566054783.

The product of its (nonzero) digits is 5292, while the sum is 30.

The spelling of 73021061073 in words is "seventy-three billion, twenty-one million, sixty-one thousand, seventy-three".