3612187690 has 16 divisors (see below), whose sum is σ = 6503720328. Its totient is φ = 1444478976.

The previous prime is 3612187681. The next prime is 3612187729. The reversal of 3612187690 is 967812163.

It can be written as a sum of positive squares in 4 ways, for example, as 1888858521 + 1723329169 = 43461^2 + 41513^2 .

It is a super-2 number, since 2×3612187690² = 26095799815575072200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9687 + ... + 85546.

Almost surely, 2^3612187690 is an apocalyptic number.

3612187690 is a deficient number, since it is larger than the sum of its proper divisors (2891532638).

3612187690 is a wasteful number, since it uses less digits than its factorization.

3612187690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99033.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 3612187690 is about 60101.4782680093. The cubic root of 3612187690 is about 1534.3464614550.

The spelling of 3612187690 in words is "three billion, six hundred twelve million, one hundred eighty-seven thousand, six hundred ninety".