93940758409 has 2 divisors, whose sum is σ = 93940758410. Its totient is φ = 93940758408.

The previous prime is 93940758389. The next prime is 93940758449. The reversal of 93940758409 is 90485704939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88756326400 + 5184432009 = 297920^2 + 72003^2 .

It is a cyclic number.

It is not a de Polignac number, because 93940758409 - 2¹¹ = 93940756361 is a prime.

It is a super-2 number, since 2×93940758409² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (93940758449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46970379204 + 46970379205.

It is an arithmetic number, because the mean of its divisors is an integer number (46970379205).

Almost surely, 2^93940758409 is an apocalyptic number.

It is an amenable number.

93940758409 is a deficient number, since it is larger than the sum of its proper divisors (1).

93940758409 is an equidigital number, since it uses as much as digits as its factorization.

93940758409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 93940758409 in words is "ninety-three billion, nine hundred forty million, seven hundred fifty-eight thousand, four hundred nine".