73681596454 has 4 divisors (see below), whose sum is σ = 110522394684. Its totient is φ = 36840798226.

The previous prime is 73681596449. The next prime is 73681596473. The reversal of 73681596454 is 45469518637.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18420399112 + ... + 18420399115.

It is an arithmetic number, because the mean of its divisors is an integer number (27630598671).

Almost surely, 2^73681596454 is an apocalyptic number.

73681596454 is a deficient number, since it is larger than the sum of its proper divisors (36840798230).

73681596454 is a wasteful number, since it uses less digits than its factorization.

73681596454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36840798229.

The product of its digits is 21772800, while the sum is 58.

The spelling of 73681596454 in words is "seventy-three billion, six hundred eighty-one million, five hundred ninety-six thousand, four hundred fifty-four".