97838807442239 has 2 divisors, whose sum is σ = 97838807442240. Its totient is φ = 97838807442238.

The previous prime is 97838807442143. The next prime is 97838807442293. The reversal of 97838807442239 is 93224470883879.

Together with next prime (97838807442293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (93224470883879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97838807442239 - 2³⁶ = 97770087965503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97838807444239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48919403721119 + 48919403721120.

It is an arithmetic number, because the mean of its divisors is an integer number (48919403721120).

Almost surely, 2^{97838807442239} is an apocalyptic number.

97838807442239 is a deficient number, since it is larger than the sum of its proper divisors (1).

97838807442239 is an equidigital number, since it uses as much as digits as its factorization.

97838807442239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1170505728, while the sum is 74.

The spelling of 97838807442239 in words is "ninety-seven trillion, eight hundred thirty-eight billion, eight hundred seven million, four hundred forty-two thousand, two hundred thirty-nine".