72466326631 has 2 divisors, whose sum is σ = 72466326632. Its totient is φ = 72466326630.

The previous prime is 72466326509. The next prime is 72466326731. The reversal of 72466326631 is 13662366427.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13662366427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72466326631 - 2³³ = 63876392039 is a prime.

It is a super-2 number, since 2×72466326631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72466326731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36233163315 + 36233163316.

It is an arithmetic number, because the mean of its divisors is an integer number (36233163316).

Almost surely, 2^72466326631 is an apocalyptic number.

72466326631 is a deficient number, since it is larger than the sum of its proper divisors (1).

72466326631 is an equidigital number, since it uses as much as digits as its factorization.

72466326631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 46.

The spelling of 72466326631 in words is "seventy-two billion, four hundred sixty-six million, three hundred twenty-six thousand, six hundred thirty-one".