3868155677 has 2 divisors, whose sum is σ = 3868155678. Its totient is φ = 3868155676.

The previous prime is 3868155637. The next prime is 3868155721. The reversal of 3868155677 is 7765518683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3098703556 + 769452121 = 55666^2 + 27739^2 .

It is a cyclic number.

It is not a de Polignac number, because 3868155677 - 2²² = 3863961373 is a prime.

It is a super-3 number, since 3×3868155677³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3868155637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934077838 + 1934077839.

It is an arithmetic number, because the mean of its divisors is an integer number (1934077839).

Almost surely, 2^3868155677 is an apocalyptic number.

It is an amenable number.

3868155677 is a deficient number, since it is larger than the sum of its proper divisors (1).

3868155677 is an equidigital number, since it uses as much as digits as its factorization.

3868155677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 56.

The square root of 3868155677 is about 62194.4987679779. The cubic root of 3868155677 is about 1569.7650231861.

The spelling of 3868155677 in words is "three billion, eight hundred sixty-eight million, one hundred fifty-five thousand, six hundred seventy-seven".