93678885349921 has 2 divisors, whose sum is σ = 93678885349922. Its totient is φ = 93678885349920.

The previous prime is 93678885349873. The next prime is 93678885350009. The reversal of 93678885349921 is 12994358887639.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54827212611600 + 38851672738321 = 7404540^2 + 6233111^2 .

It is a cyclic number.

It is not a de Polignac number, because 93678885349921 - 2⁷ = 93678885349793 is a prime.

It is a super-2 number, since 2×93678885349921² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (93678885379921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46839442674960 + 46839442674961.

It is an arithmetic number, because the mean of its divisors is an integer number (46839442674961).

Almost surely, 2^{93678885349921} is an apocalyptic number.

It is an amenable number.

93678885349921 is a deficient number, since it is larger than the sum of its proper divisors (1).

93678885349921 is an equidigital number, since it uses as much as digits as its factorization.

93678885349921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5643509760, while the sum is 82.

The spelling of 93678885349921 in words is "ninety-three trillion, six hundred seventy-eight billion, eight hundred eighty-five million, three hundred forty-nine thousand, nine hundred twenty-one".