71752603397 has 2 divisors, whose sum is σ = 71752603398. Its totient is φ = 71752603396.

The previous prime is 71752603367. The next prime is 71752603457. The reversal of 71752603397 is 79330625717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63830001316 + 7922602081 = 252646^2 + 89009^2 .

It is a cyclic number.

It is not a de Polignac number, because 71752603397 - 2⁸ = 71752603141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71752603327) 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, 35876301698 + 35876301699.

It is an arithmetic number, because the mean of its divisors is an integer number (35876301699).

Almost surely, 2^71752603397 is an apocalyptic number.

It is an amenable number.

71752603397 is a deficient number, since it is larger than the sum of its proper divisors (1).

71752603397 is an equidigital number, since it uses as much as digits as its factorization.

71752603397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1666980, while the sum is 50.

The spelling of 71752603397 in words is "seventy-one billion, seven hundred fifty-two million, six hundred three thousand, three hundred ninety-seven".