3890975961659 has 2 divisors, whose sum is σ = 3890975961660. Its totient is φ = 3890975961658.

The previous prime is 3890975961629. The next prime is 3890975961661. The reversal of 3890975961659 is 9561695790983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3890975961659 is a prime.

Together with 3890975961661, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3890975961659.

It is not a weakly prime, because it can be changed into another prime (3890975961629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945487980829 + 1945487980830.

It is an arithmetic number, because the mean of its divisors is an integer number (1945487980830).

Almost surely, 2^{3890975961659} is an apocalyptic number.

3890975961659 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890975961659 is an equidigital number, since it uses as much as digits as its factorization.

3890975961659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 992023200, while the sum is 77.

The spelling of 3890975961659 in words is "three trillion, eight hundred ninety billion, nine hundred seventy-five million, nine hundred sixty-one thousand, six hundred fifty-nine".