3671111993 has 2 divisors, whose sum is σ = 3671111994. Its totient is φ = 3671111992.

The previous prime is 3671111987. The next prime is 3671112007. The reversal of 3671111993 is 3991111763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3105052729 + 566059264 = 55723^2 + 23792^2 .

It is a cyclic number.

It is not a de Polignac number, because 3671111993 - 2⁶ = 3671111929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3671111993.

It is not a weakly prime, because it can be changed into another prime (3671111893) 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, 1835555996 + 1835555997.

It is an arithmetic number, because the mean of its divisors is an integer number (1835555997).

Almost surely, 2^3671111993 is an apocalyptic number.

It is an amenable number.

3671111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3671111993 is an equidigital number, since it uses as much as digits as its factorization.

3671111993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 41.

The square root of 3671111993 is about 60589.7020375575. The cubic root of 3671111993 is about 1542.6445807492.

The spelling of 3671111993 in words is "three billion, six hundred seventy-one million, one hundred eleven thousand, nine hundred ninety-three".