3678989877 has 6 divisors (see below), whose sum is σ = 5314096502. Its totient is φ = 2452659912.

The previous prime is 3678989861. The next prime is 3678989887. The reversal of 3678989877 is 7789898763.

It can be written as a sum of positive squares in only one way, i.e., 2954357316 + 724632561 = 54354^2 + 26919^2 .

It is not a de Polignac number, because 3678989877 - 2⁴ = 3678989861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678989827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204388318 + ... + 204388335.

Almost surely, 2^3678989877 is an apocalyptic number.

It is an amenable number.

3678989877 is a deficient number, since it is larger than the sum of its proper divisors (1635106625).

3678989877 is a wasteful number, since it uses less digits than its factorization.

3678989877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408776659 (or 408776656 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 72.

The square root of 3678989877 is about 60654.6772887302. The cubic root of 3678989877 is about 1543.7472523196.

The spelling of 3678989877 in words is "three billion, six hundred seventy-eight million, nine hundred eighty-nine thousand, eight hundred seventy-seven".