3612605642 has 4 divisors (see below), whose sum is σ = 5418908466. Its totient is φ = 1806302820.

The previous prime is 3612605611. The next prime is 3612605657. The reversal of 3612605642 is 2465062163.

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: 2465062163 = 179 ⋅13771297.

It can be written as a sum of positive squares in only one way, i.e., 2431377481 + 1181228161 = 49309^2 + 34369^2 .

It is a super-2 number, since 2×3612605642² = 26101839049220464328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903151409 + ... + 903151412.

Almost surely, 2^3612605642 is an apocalyptic number.

3612605642 is a deficient number, since it is larger than the sum of its proper divisors (1806302824).

3612605642 is a wasteful number, since it uses less digits than its factorization.

3612605642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806302823.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 3612605642 is about 60104.9552200149. The cubic root of 3612605642 is about 1534.4056368999.

The spelling of 3612605642 in words is "three billion, six hundred twelve million, six hundred five thousand, six hundred forty-two".