73994639055 has 8 divisors (see below), whose sum is σ = 118391422512. Its totient is φ = 39463807488.

The previous prime is 73994639051. The next prime is 73994639077. The reversal of 73994639055 is 55093649937.

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

It is not a de Polignac number, because 73994639055 - 2² = 73994639051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73994639055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73994639051) 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, 2466487954 + ... + 2466487983.

It is an arithmetic number, because the mean of its divisors is an integer number (14798927814).

Almost surely, 2^73994639055 is an apocalyptic number.

73994639055 is a deficient number, since it is larger than the sum of its proper divisors (44396783457).

73994639055 is a wasteful number, since it uses less digits than its factorization.

73994639055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932975945.

The product of its (nonzero) digits is 27556200, while the sum is 60.

The spelling of 73994639055 in words is "seventy-three billion, nine hundred ninety-four million, six hundred thirty-nine thousand, fifty-five".