3620863556 has 12 divisors (see below), whose sum is σ = 6555011820. Its totient is φ = 1748003040.

The previous prime is 3620863523. The next prime is 3620863577. The reversal of 3620863556 is 6553680263.

It can be written as a sum of positive squares in 2 ways, for example, as 701190400 + 2919673156 = 26480^2 + 54034^2 .

It is a super-2 number, since 2×3620863556² = 26221305782337930272, 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 in 3 ways as a sum of consecutive naturals, for example, 15607055 + ... + 15607286.

It is an arithmetic number, because the mean of its divisors is an integer number (546250985).

Almost surely, 2^3620863556 is an apocalyptic number.

It is an amenable number.

3620863556 is a deficient number, since it is larger than the sum of its proper divisors (2934148264).

3620863556 is a wasteful number, since it uses less digits than its factorization.

3620863556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31214374 (or 31214372 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The square root of 3620863556 is about 60173.6117912163. The cubic root of 3620863556 is about 1535.5738931467.

The spelling of 3620863556 in words is "three billion, six hundred twenty million, eight hundred sixty-three thousand, five hundred fifty-six".