3816942786 has 12 divisors (see below), whose sum is σ = 8270042742. Its totient is φ = 1272314256.

The previous prime is 3816942761. The next prime is 3816942809. The reversal of 3816942786 is 6872496183.

3816942786 is a `hidden beast` number, since 3 + 81 + 69 + 427 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3608284761 + 208658025 = 60069^2 + 14445^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106026171 + ... + 106026206.

Almost surely, 2^3816942786 is an apocalyptic number.

3816942786 is an abundant number, since it is smaller than the sum of its proper divisors (4453099956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3816942786 is a wasteful number, since it uses less digits than its factorization.

3816942786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212052385 (or 212052382 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 3816942786 is about 61781.4113305936. The cubic root of 3816942786 is about 1562.8065282438.

The spelling of 3816942786 in words is "three billion, eight hundred sixteen million, nine hundred forty-two thousand, seven hundred eighty-six".