3956289061619 has 2 divisors, whose sum is σ = 3956289061620. Its totient is φ = 3956289061618.

The previous prime is 3956289061513. The next prime is 3956289061649. The reversal of 3956289061619 is 9161609826593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3956289061619 - 2⁴⁰ = 2856777433843 is a prime.

It is a super-2 number, since 2×3956289061619² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3956289061649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978144530809 + 1978144530810.

It is an arithmetic number, because the mean of its divisors is an integer number (1978144530810).

Almost surely, 2^{3956289061619} is an apocalyptic number.

3956289061619 is a deficient number, since it is larger than the sum of its proper divisors (1).

3956289061619 is an equidigital number, since it uses as much as digits as its factorization.

3956289061619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37791360, while the sum is 65.

The spelling of 3956289061619 in words is "three trillion, nine hundred fifty-six billion, two hundred eighty-nine million, sixty-one thousand, six hundred nineteen".