9873858377 has 2 divisors, whose sum is σ = 9873858378. Its totient is φ = 9873858376.

The previous prime is 9873858361. The next prime is 9873858389. The reversal of 9873858377 is 7738583789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7086440761 + 2787417616 = 84181^2 + 52796^2 .

It is a cyclic number.

It is not a de Polignac number, because 9873858377 - 2⁴ = 9873858361 is a prime.

It is not a weakly prime, because it can be changed into another prime (9873858977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936929188 + 4936929189.

It is an arithmetic number, because the mean of its divisors is an integer number (4936929189).

Almost surely, 2^9873858377 is an apocalyptic number.

It is an amenable number.

9873858377 is a deficient number, since it is larger than the sum of its proper divisors (1).

9873858377 is an equidigital number, since it uses as much as digits as its factorization.

9873858377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 65.

The square root of 9873858377 is about 99367.2902770323. The cubic root of 9873858377 is about 2145.3375348481.

The spelling of 9873858377 in words is "nine billion, eight hundred seventy-three million, eight hundred fifty-eight thousand, three hundred seventy-seven".