72323832331 has 2 divisors, whose sum is σ = 72323832332. Its totient is φ = 72323832330.

The previous prime is 72323832323. The next prime is 72323832379. The reversal of 72323832331 is 13323832327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72323832331 - 2³ = 72323832323 is a prime.

It is a super-2 number, since 2×72323832331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72323832311) 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 as a sum of consecutive naturals, namely, 36161916165 + 36161916166.

It is an arithmetic number, because the mean of its divisors is an integer number (36161916166).

Almost surely, 2^72323832331 is an apocalyptic number.

72323832331 is a deficient number, since it is larger than the sum of its proper divisors (1).

72323832331 is an equidigital number, since it uses as much as digits as its factorization.

72323832331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

The spelling of 72323832331 in words is "seventy-two billion, three hundred twenty-three million, eight hundred thirty-two thousand, three hundred thirty-one".