3618634336 has 48 divisors (see below), whose sum is σ = 7325122896. Its totient is φ = 1758398976.

The previous prime is 3618634319. The next prime is 3618634337. The reversal of 3618634336 is 6334368163.

It is a junction number, because it is equal to n+sod(n) for n = 3618634292 and 3618634301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618634337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937275 + ... + 1939141.

It is an arithmetic number, because the mean of its divisors is an integer number (152606727).

Almost surely, 2^3618634336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3618634336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3662561448).

3618634336 is an abundant number, since it is smaller than the sum of its proper divisors (3706488560).

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

3618634336 is a wasteful number, since it uses less digits than its factorization.

3618634336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551 (or 3543 counting only the distinct ones).

The product of its digits is 559872, while the sum is 43.

The square root of 3618634336 is about 60155.0857035380. The cubic root of 3618634336 is about 1535.2586981003.

The spelling of 3618634336 in words is "three billion, six hundred eighteen million, six hundred thirty-four thousand, three hundred thirty-six".