9975395851 has 2 divisors, whose sum is σ = 9975395852. Its totient is φ = 9975395850.

The previous prime is 9975395777. The next prime is 9975395869. The reversal of 9975395851 is 1585935799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9975395851 - 2⁷ = 9975395723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9975395851.

It is not a weakly prime, because it can be changed into another prime (9975395351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987697925 + 4987697926.

It is an arithmetic number, because the mean of its divisors is an integer number (4987697926).

Almost surely, 2^9975395851 is an apocalyptic number.

9975395851 is a deficient number, since it is larger than the sum of its proper divisors (1).

9975395851 is an equidigital number, since it uses as much as digits as its factorization.

9975395851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309000, while the sum is 61.

The square root of 9975395851 is about 99876.9034912477. The cubic root of 9975395851 is about 2152.6663045131. Note that the first 3 decimals are identical.

The spelling of 9975395851 in words is "nine billion, nine hundred seventy-five million, three hundred ninety-five thousand, eight hundred fifty-one".