73640770423 has 8 divisors (see below), whose sum is σ = 80426376576. Its totient is φ = 66870329400.

The previous prime is 73640770403. The next prime is 73640770471. The reversal of 73640770423 is 32407704637.

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

It is a cyclic number.

It is not a de Polignac number, because 73640770423 - 2⁹ = 73640769911 is a prime.

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 73640770423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73640770403) 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, 3781123 + ... + 3800548.

It is an arithmetic number, because the mean of its divisors is an integer number (10053297072).

Almost surely, 2^73640770423 is an apocalyptic number.

73640770423 is a deficient number, since it is larger than the sum of its proper divisors (6785606153).

73640770423 is a wasteful number, since it uses less digits than its factorization.

73640770423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582565.

The product of its (nonzero) digits is 592704, while the sum is 43.

The spelling of 73640770423 in words is "seventy-three billion, six hundred forty million, seven hundred seventy thousand, four hundred twenty-three".