72152051773 has 2 divisors, whose sum is σ = 72152051774. Its totient is φ = 72152051772.

The previous prime is 72152051749. The next prime is 72152051791. The reversal of 72152051773 is 37715025127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53688133849 + 18463917924 = 231707^2 + 135882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72152051773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72152051723) 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, 36076025886 + 36076025887.

It is an arithmetic number, because the mean of its divisors is an integer number (36076025887).

Almost surely, 2^72152051773 is an apocalyptic number.

It is an amenable number.

72152051773 is a deficient number, since it is larger than the sum of its proper divisors (1).

72152051773 is an equidigital number, since it uses as much as digits as its factorization.

72152051773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102900, while the sum is 40.

The spelling of 72152051773 in words is "seventy-two billion, one hundred fifty-two million, fifty-one thousand, seven hundred seventy-three".