997416682139 has 2 divisors, whose sum is σ = 997416682140. Its totient is φ = 997416682138.

The previous prime is 997416682057. The next prime is 997416682147. The reversal of 997416682139 is 931286614799.

997416682139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (931286614799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997416682139 - 2⁸ = 997416681883 is a prime.

It is not a weakly prime, because it can be changed into another prime (997416642139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498708341069 + 498708341070.

It is an arithmetic number, because the mean of its divisors is an integer number (498708341070).

Almost surely, 2^997416682139 is an apocalyptic number.

997416682139 is a deficient number, since it is larger than the sum of its proper divisors (1).

997416682139 is an equidigital number, since it uses as much as digits as its factorization.

997416682139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35271936, while the sum is 65.

The spelling of 997416682139 in words is "nine hundred ninety-seven billion, four hundred sixteen million, six hundred eighty-two thousand, one hundred thirty-nine".