93831740489 has 2 divisors, whose sum is σ = 93831740490. Its totient is φ = 93831740488.

The previous prime is 93831740461. The next prime is 93831740531. The reversal of 93831740489 is 98404713839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93212974864 + 618765625 = 305308^2 + 24875^2 .

It is an emirp because it is prime and its reverse (98404713839) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93831740489 - 2²⁴ = 93814963273 is a prime.

It is not a weakly prime, because it can be changed into another prime (93831740419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46915870244 + 46915870245.

It is an arithmetic number, because the mean of its divisors is an integer number (46915870245).

Almost surely, 2^93831740489 is an apocalyptic number.

It is an amenable number.

93831740489 is a deficient number, since it is larger than the sum of its proper divisors (1).

93831740489 is an equidigital number, since it uses as much as digits as its factorization.

93831740489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 93831740489 in words is "ninety-three billion, eight hundred thirty-one million, seven hundred forty thousand, four hundred eighty-nine".