3786778682 has 8 divisors (see below), whose sum is σ = 5686232916. Its totient is φ = 1891367712.

The previous prime is 3786778669. The next prime is 3786778687. The reversal of 3786778682 is 2868776873.

3786778682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3672481201 + 114297481 = 60601^2 + 10691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3786778687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008473 + ... + 1012220.

Almost surely, 2^3786778682 is an apocalyptic number.

3786778682 is a deficient number, since it is larger than the sum of its proper divisors (1899454234).

3786778682 is a wasteful number, since it uses less digits than its factorization.

3786778682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021632.

The product of its digits is 37933056, while the sum is 62.

The square root of 3786778682 is about 61536.8075382531. The cubic root of 3786778682 is about 1558.6788455518.

The spelling of 3786778682 in words is "three billion, seven hundred eighty-six million, seven hundred seventy-eight thousand, six hundred eighty-two".