3781064386 has 24 divisors (see below), whose sum is σ = 6243145020. Its totient is φ = 1716163680.

The previous prime is 3781064377. The next prime is 3781064387. The reversal of 3781064386 is 6834601873.

It can be written as a sum of positive squares in 2 ways, for example, as 3121345161 + 659719225 = 55869^2 + 25685^2 .

It is a super-3 number, since 3×3781064386³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3781064387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160560 + ... + 182596.

Almost surely, 2^3781064386 is an apocalyptic number.

3781064386 is a deficient number, since it is larger than the sum of its proper divisors (2462080634).

3781064386 is a wasteful number, since it uses less digits than its factorization.

3781064386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22770 (or 22759 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 3781064386 is about 61490.3601062801. The cubic root of 3781064386 is about 1557.8944289510.

The spelling of 3781064386 in words is "three billion, seven hundred eighty-one million, sixty-four thousand, three hundred eighty-six".