3677778696987 has 6 divisors (see below), whose sum is σ = 5312347006772. Its totient is φ = 2451852464652.

The previous prime is 3677778696937. The next prime is 3677778696997. The reversal of 3677778696987 is 7896968777763.

3677778696987 is a `hidden beast` number, since 367 + 7 + 7 + 7 + 86 + 96 + 9 + 87 = 666.

3677778696987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3677778696987 - 2⁶ = 3677778696923 is a prime.

It is a super-2 number, since 2×3677778696987² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3677778696897 and 3677778696906.

It is not an unprimeable number, because it can be changed into a prime (3677778696937) 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, 204321038713 + ... + 204321038730.

Almost surely, 2^{3677778696987} is an apocalyptic number.

3677778696987 is a deficient number, since it is larger than the sum of its proper divisors (1634568309785).

3677778696987 is a wasteful number, since it uses less digits than its factorization.

3677778696987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408642077449 (or 408642077446 counting only the distinct ones).

The product of its digits is 56458612224, while the sum is 90.

The spelling of 3677778696987 in words is "three trillion, six hundred seventy-seven billion, seven hundred seventy-eight million, six hundred ninety-six thousand, nine hundred eighty-seven".