80735266357 has 2 divisors, whose sum is σ = 80735266358. Its totient is φ = 80735266356.

The previous prime is 80735266343. The next prime is 80735266433. The reversal of 80735266357 is 75366253708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79637404401 + 1097861956 = 282201^2 + 33134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80735266357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80735260357) 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, 40367633178 + 40367633179.

It is an arithmetic number, because the mean of its divisors is an integer number (40367633179).

Almost surely, 2^80735266357 is an apocalyptic number.

It is an amenable number.

80735266357 is a deficient number, since it is larger than the sum of its proper divisors (1).

80735266357 is an equidigital number, since it uses as much as digits as its factorization.

80735266357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 80735266357 in words is "eighty billion, seven hundred thirty-five million, two hundred sixty-six thousand, three hundred fifty-seven".