93984781117 has 2 divisors, whose sum is σ = 93984781118. Its totient is φ = 93984781116.

The previous prime is 93984781063. The next prime is 93984781157. The reversal of 93984781117 is 71118748939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90099627556 + 3885153561 = 300166^2 + 62331^2 .

It is a cyclic number.

It is not a de Polignac number, because 93984781117 - 2¹¹ = 93984779069 is a prime.

It is a super-2 number, since 2×93984781117² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93984781157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46992390558 + 46992390559.

It is an arithmetic number, because the mean of its divisors is an integer number (46992390559).

Almost surely, 2^93984781117 is an apocalyptic number.

It is an amenable number.

93984781117 is a deficient number, since it is larger than the sum of its proper divisors (1).

93984781117 is an equidigital number, since it uses as much as digits as its factorization.

93984781117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 58.

The spelling of 93984781117 in words is "ninety-three billion, nine hundred eighty-four million, seven hundred eighty-one thousand, one hundred seventeen".