73213682531 has 8 divisors (see below), whose sum is σ = 79874958384. Its totient is φ = 66553321120.

The previous prime is 73213682527. The next prime is 73213682533. The reversal of 73213682531 is 13528631237.

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

It is not a de Polignac number, because 73213682531 - 2² = 73213682527 is a prime.

It is a super-2 number, since 2×73213682531² (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 (73213682533) 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, 55496 + ... + 386661.

It is an arithmetic number, because the mean of its divisors is an integer number (9984369798).

Almost surely, 2^73213682531 is an apocalyptic number.

73213682531 is a deficient number, since it is larger than the sum of its proper divisors (6661275853).

73213682531 is a wasteful number, since it uses less digits than its factorization.

73213682531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457221.

The product of its digits is 181440, while the sum is 41.

The spelling of 73213682531 in words is "seventy-three billion, two hundred thirteen million, six hundred eighty-two thousand, five hundred thirty-one".