9761965987 has 2 divisors, whose sum is σ = 9761965988. Its totient is φ = 9761965986.

The previous prime is 9761965951. The next prime is 9761965991. The reversal of 9761965987 is 7895691679.

It is a strong prime.

It is an emirp because it is prime and its reverse (7895691679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9761965987 - 2⁷ = 9761965859 is a prime.

It is not a weakly prime, because it can be changed into another prime (9761963987) 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, 4880982993 + 4880982994.

It is an arithmetic number, because the mean of its divisors is an integer number (4880982994).

Almost surely, 2^9761965987 is an apocalyptic number.

9761965987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9761965987 is an equidigital number, since it uses as much as digits as its factorization.

9761965987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 67.

The square root of 9761965987 is about 98802.6618416731. The cubic root of 9761965987 is about 2137.2029421641.

The spelling of 9761965987 in words is "nine billion, seven hundred sixty-one million, nine hundred sixty-five thousand, nine hundred eighty-seven".