75681027797 has 2 divisors, whose sum is σ = 75681027798. Its totient is φ = 75681027796.

The previous prime is 75681027761. The next prime is 75681027811. The reversal of 75681027797 is 79772018657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44892710641 + 30788317156 = 211879^2 + 175466^2 .

It is a cyclic number.

It is not a de Polignac number, because 75681027797 - 2³⁶ = 6961551061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75681027497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37840513898 + 37840513899.

It is an arithmetic number, because the mean of its divisors is an integer number (37840513899).

Almost surely, 2^75681027797 is an apocalyptic number.

It is an amenable number.

75681027797 is a deficient number, since it is larger than the sum of its proper divisors (1).

75681027797 is an equidigital number, since it uses as much as digits as its factorization.

75681027797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10372320, while the sum is 59.

The spelling of 75681027797 in words is "seventy-five billion, six hundred eighty-one million, twenty-seven thousand, seven hundred ninety-seven".