72326557843 has 2 divisors, whose sum is σ = 72326557844. Its totient is φ = 72326557842.

The previous prime is 72326557801. The next prime is 72326557847. The reversal of 72326557843 is 34875562327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72326557843 - 2¹³ = 72326549651 is a prime.

It is a super-2 number, since 2×72326557843² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72326557847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36163278921 + 36163278922.

It is an arithmetic number, because the mean of its divisors is an integer number (36163278922).

Almost surely, 2^72326557843 is an apocalyptic number.

72326557843 is a deficient number, since it is larger than the sum of its proper divisors (1).

72326557843 is an equidigital number, since it uses as much as digits as its factorization.

72326557843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8467200, while the sum is 52.

The spelling of 72326557843 in words is "seventy-two billion, three hundred twenty-six million, five hundred fifty-seven thousand, eight hundred forty-three".