97981319339 has 2 divisors, whose sum is σ = 97981319340. Its totient is φ = 97981319338.

The previous prime is 97981319321. The next prime is 97981319341. The reversal of 97981319339 is 93391318979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97981319339 - 2³² = 93686352043 is a prime.

It is a super-2 number, since 2×97981319339² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 97981319341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97981319399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48990659669 + 48990659670.

It is an arithmetic number, because the mean of its divisors is an integer number (48990659670).

Almost surely, 2^97981319339 is an apocalyptic number.

97981319339 is a deficient number, since it is larger than the sum of its proper divisors (1).

97981319339 is an equidigital number, since it uses as much as digits as its factorization.

97981319339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9920232, while the sum is 62.

The spelling of 97981319339 in words is "ninety-seven billion, nine hundred eighty-one million, three hundred nineteen thousand, three hundred thirty-nine".