3780536618 has 4 divisors (see below), whose sum is σ = 5670804930. Its totient is φ = 1890268308.

The previous prime is 3780536581. The next prime is 3780536623. The reversal of 3780536618 is 8166350873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8166350873 = 5081 ⋅1607233.

It can be written as a sum of positive squares in only one way, i.e., 3022470529 + 758066089 = 54977^2 + 27533^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945134153 + ... + 945134156.

Almost surely, 2^3780536618 is an apocalyptic number.

3780536618 is a deficient number, since it is larger than the sum of its proper divisors (1890268312).

3780536618 is a wasteful number, since it uses less digits than its factorization.

3780536618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890268311.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 3780536618 is about 61486.0684870971. The cubic root of 3780536618 is about 1557.8219409775.

The spelling of 3780536618 in words is "three billion, seven hundred eighty million, five hundred thirty-six thousand, six hundred eighteen".