911484897839 has 2 divisors, whose sum is σ = 911484897840. Its totient is φ = 911484897838.

The previous prime is 911484897823. The next prime is 911484897889. The reversal of 911484897839 is 938798484119.

It is a weak prime.

It is an emirp because it is prime and its reverse (938798484119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 911484897839 - 2⁴ = 911484897823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (911484897889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455742448919 + 455742448920.

It is an arithmetic number, because the mean of its divisors is an integer number (455742448920).

Almost surely, 2^911484897839 is an apocalyptic number.

911484897839 is a deficient number, since it is larger than the sum of its proper divisors (1).

911484897839 is an equidigital number, since it uses as much as digits as its factorization.

911484897839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 71.

The spelling of 911484897839 in words is "nine hundred eleven billion, four hundred eighty-four million, eight hundred ninety-seven thousand, eight hundred thirty-nine".