3723061618 has 4 divisors (see below), whose sum is σ = 5584592430. Its totient is φ = 1861530808.

The previous prime is 3723061603. The next prime is 3723061631. The reversal of 3723061618 is 8161603273.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3597240529 + 125821089 = 59977^2 + 11217^2 .

It is a super-2 number, since 2×3723061618² = 27722375622849555848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930765403 + ... + 930765406.

Almost surely, 2^3723061618 is an apocalyptic number.

3723061618 is a deficient number, since it is larger than the sum of its proper divisors (1861530812).

3723061618 is a wasteful number, since it uses less digits than its factorization.

3723061618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861530811.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3723061618 is about 61016.8961681926. The cubic root of 3723061618 is about 1549.8871396146.

The spelling of 3723061618 in words is "three billion, seven hundred twenty-three million, sixty-one thousand, six hundred eighteen".