73501063621 has 8 divisors (see below), whose sum is σ = 75994212600. Its totient is φ = 71034579648.

The previous prime is 73501063619. The next prime is 73501063631. The reversal of 73501063621 is 12636010537.

It can be written as a sum of positive squares in 4 ways, for example, as 5359704100 + 68141359521 = 73210^2 + 261039^2 .

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

It is not a de Polignac number, because 73501063621 - 2¹ = 73501063619 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 (73501063631) 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, 6660646 + ... + 6671671.

It is an arithmetic number, because the mean of its divisors is an integer number (9499276575).

Almost surely, 2^73501063621 is an apocalyptic number.

It is an amenable number.

73501063621 is a deficient number, since it is larger than the sum of its proper divisors (2493148979).

73501063621 is a wasteful number, since it uses less digits than its factorization.

73501063621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13332503.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 73501063621 in words is "seventy-three billion, five hundred one million, sixty-three thousand, six hundred twenty-one".