73831731731 has 8 divisors (see below), whose sum is σ = 79992793584. Its totient is φ = 67872672000.

The previous prime is 73831731719. The next prime is 73831731737. The reversal of 73831731731 is 13713713837.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73831731731 is a prime.

It is a super-2 number, since 2×73831731731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

73831731731 is a modest number, since divided by 731731 gives 73831 as remainder.

It is not an unprimeable number, because it can be changed into a prime (73831731737) 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, 50499770 + ... + 50501231.

It is an arithmetic number, because the mean of its divisors is an integer number (9999099198).

Almost surely, 2^73831731731 is an apocalyptic number.

73831731731 is a deficient number, since it is larger than the sum of its proper divisors (6161061853).

73831731731 is a wasteful number, since it uses less digits than its factorization.

73831731731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001061.

The product of its digits is 222264, while the sum is 44.

The spelling of 73831731731 in words is "seventy-three billion, eight hundred thirty-one million, seven hundred thirty-one thousand, seven hundred thirty-one".