93807780897793 has 2 divisors, whose sum is σ = 93807780897794. Its totient is φ = 93807780897792.

The previous prime is 93807780897707. The next prime is 93807780897821. The reversal of 93807780897793 is 39779808770839.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51021634701249 + 42786146196544 = 7142943^2 + 6541112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93807780897793 is a prime.

It is a super-2 number, since 2×93807780897793² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 93807780897793.

It is not a weakly prime, because it can be changed into another prime (93807784897793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46903890448896 + 46903890448897.

It is an arithmetic number, because the mean of its divisors is an integer number (46903890448897).

Almost surely, 2^{93807780897793} is an apocalyptic number.

It is an amenable number.

93807780897793 is a deficient number, since it is larger than the sum of its proper divisors (1).

93807780897793 is an equidigital number, since it uses as much as digits as its factorization.

93807780897793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8065516032, while the sum is 85.

The spelling of 93807780897793 in words is "ninety-three trillion, eight hundred seven billion, seven hundred eighty million, eight hundred ninety-seven thousand, seven hundred ninety-three".