97986118387 has 2 divisors, whose sum is σ = 97986118388. Its totient is φ = 97986118386.

The previous prime is 97986118379. The next prime is 97986118421. The reversal of 97986118387 is 78381168979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97986118387 - 2³ = 97986118379 is a prime.

It is not a weakly prime, because it can be changed into another prime (97986118327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48993059193 + 48993059194.

It is an arithmetic number, because the mean of its divisors is an integer number (48993059194).

Almost surely, 2^97986118387 is an apocalyptic number.

97986118387 is a deficient number, since it is larger than the sum of its proper divisors (1).

97986118387 is an equidigital number, since it uses as much as digits as its factorization.

97986118387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36578304, while the sum is 67.

The spelling of 97986118387 in words is "ninety-seven billion, nine hundred eighty-six million, one hundred eighteen thousand, three hundred eighty-seven".