72334931761 has 2 divisors, whose sum is σ = 72334931762. Its totient is φ = 72334931760.

The previous prime is 72334931731. The next prime is 72334931803. The reversal of 72334931761 is 16713943327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55234400400 + 17100531361 = 235020^2 + 130769^2 .

It is a cyclic number.

It is not a de Polignac number, because 72334931761 - 2⁷ = 72334931633 is a prime.

It is a super-2 number, since 2×72334931761² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72334931731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36167465880 + 36167465881.

It is an arithmetic number, because the mean of its divisors is an integer number (36167465881).

Almost surely, 2^72334931761 is an apocalyptic number.

It is an amenable number.

72334931761 is a deficient number, since it is larger than the sum of its proper divisors (1).

72334931761 is an equidigital number, since it uses as much as digits as its factorization.

72334931761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 46.

The spelling of 72334931761 in words is "seventy-two billion, three hundred thirty-four million, nine hundred thirty-one thousand, seven hundred sixty-one".