73544054421631 has 4 divisors (see below), whose sum is σ = 73599475714912. Its totient is φ = 73488633128352.

The previous prime is 73544054421583. The next prime is 73544054421689. The reversal of 73544054421631 is 13612445044537.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73544054421631 - 2²⁷ = 73543920203903 is a prime.

It is a super-3 number, since 3×73544054421631³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73544054491631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27710644650 + ... + 27710647303.

It is an arithmetic number, because the mean of its divisors is an integer number (18399868928728).

Almost surely, 2^{73544054421631} is an apocalyptic number.

73544054421631 is a deficient number, since it is larger than the sum of its proper divisors (55421293281).

73544054421631 is a wasteful number, since it uses less digits than its factorization.

73544054421631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55421293280.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 73544054421631 in words is "seventy-three trillion, five hundred forty-four billion, fifty-four million, four hundred twenty-one thousand, six hundred thirty-one".