73418732731 has 8 divisors (see below), whose sum is σ = 75954487680. Its totient is φ = 70883249472.

The previous prime is 73418732707. The next prime is 73418732797. The reversal of 73418732731 is 13723781437.

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 73418732731 - 2¹³ = 73418724539 is a prime.

It is a super-2 number, since 2×73418732731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73418736731) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 590031 + ... + 703543.

It is an arithmetic number, because the mean of its divisors is an integer number (9494310960).

Almost surely, 2^73418732731 is an apocalyptic number.

73418732731 is a deficient number, since it is larger than the sum of its proper divisors (2535754949).

73418732731 is a wasteful number, since it uses less digits than its factorization.

73418732731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135845.

The product of its digits is 592704, while the sum is 46.

The spelling of 73418732731 in words is "seventy-three billion, four hundred eighteen million, seven hundred thirty-two thousand, seven hundred thirty-one".