93737849131721 has 2 divisors, whose sum is σ = 93737849131722. Its totient is φ = 93737849131720.

The previous prime is 93737849131711. The next prime is 93737849131777. The reversal of 93737849131721 is 12713194873739.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85777438315321 + 7960410816400 = 9261611^2 + 2821420^2 .

It is a cyclic number.

It is not a de Polignac number, because 93737849131721 - 2⁶ = 93737849131657 is a prime.

It is not a weakly prime, because it can be changed into another prime (93737849131711) 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, 46868924565860 + 46868924565861.

It is an arithmetic number, because the mean of its divisors is an integer number (46868924565861).

Almost surely, 2^{93737849131721} is an apocalyptic number.

It is an amenable number.

93737849131721 is a deficient number, since it is larger than the sum of its proper divisors (1).

93737849131721 is an equidigital number, since it uses as much as digits as its factorization.

93737849131721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48009024, while the sum is 65.

The spelling of 93737849131721 in words is "ninety-three trillion, seven hundred thirty-seven billion, eight hundred forty-nine million, one hundred thirty-one thousand, seven hundred twenty-one".