3621654036 has 144 divisors (see below), whose sum is σ = 12291796608. Its totient is φ = 868320000.

The previous prime is 3621654013. The next prime is 3621654077. The reversal of 3621654036 is 6304561263.

3621654036 is a `hidden beast` number, since 36 + 216 + 5 + 403 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 14215 + ... + 86286.

Almost surely, 2^3621654036 is an apocalyptic number.

3621654036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621654036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6145898304).

3621654036 is an abundant number, since it is smaller than the sum of its proper divisors (8670142572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621654036 is a wasteful number, since it uses less digits than its factorization.

3621654036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100542 (or 100537 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 3621654036 is about 60180.1797604494. The cubic root of 3621654036 is about 1535.6856300396.

The spelling of 3621654036 in words is "three billion, six hundred twenty-one million, six hundred fifty-four thousand, thirty-six".