3621852655 has 4 divisors (see below), whose sum is σ = 4346223192. Its totient is φ = 2897482120.

The previous prime is 3621852653. The next prime is 3621852691. The reversal of 3621852655 is 5562581263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5562581263 = 29 ⋅191813147.

It is not a de Polignac number, because 3621852655 - 2¹ = 3621852653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621852653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362185261 + ... + 362185270.

It is an arithmetic number, because the mean of its divisors is an integer number (1086555798).

Almost surely, 2^3621852655 is an apocalyptic number.

3621852655 is a deficient number, since it is larger than the sum of its proper divisors (724370537).

3621852655 is an equidigital number, since it uses as much as digits as its factorization.

3621852655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724370536.

The product of its digits is 432000, while the sum is 43.

The square root of 3621852655 is about 60181.8299406058. The cubic root of 3621852655 is about 1535.7137029187.

The spelling of 3621852655 in words is "three billion, six hundred twenty-one million, eight hundred fifty-two thousand, six hundred fifty-five".