3445181818 has 16 divisors (see below), whose sum is σ = 5892664680. Its totient is φ = 1496549376.

The previous prime is 3445181809. The next prime is 3445181849. The reversal of 3445181818 is 8181815443.

It can be written as a sum of positive squares in 4 ways, for example, as 2515724649 + 929457169 = 50157^2 + 30487^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3896823 + ... + 3897706.

Almost surely, 2^3445181818 is an apocalyptic number.

3445181818 is a deficient number, since it is larger than the sum of its proper divisors (2447482862).

3445181818 is a wasteful number, since it uses less digits than its factorization.

3445181818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794561.

The product of its digits is 122880, while the sum is 43.

The square root of 3445181818 is about 58695.6712032497. The cubic root of 3445181818 is about 1510.3260582669.

The spelling of 3445181818 in words is "three billion, four hundred forty-five million, one hundred eighty-one thousand, eight hundred eighteen".