4161695987 has 2 divisors, whose sum is σ = 4161695988. Its totient is φ = 4161695986.

The previous prime is 4161695983. The next prime is 4161696017. The reversal of 4161695987 is 7895961614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4161695987 - 2² = 4161695983 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (4161695983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080847993 + 2080847994.

It is an arithmetic number, because the mean of its divisors is an integer number (2080847994).

Almost surely, 2^4161695987 is an apocalyptic number.

4161695987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161695987 is an equidigital number, since it uses as much as digits as its factorization.

4161695987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 56.

The square root of 4161695987 is about 64511.2082277181. The cubic root of 4161695987 is about 1608.5088345938.

The spelling of 4161695987 in words is "four billion, one hundred sixty-one million, six hundred ninety-five thousand, nine hundred eighty-seven".