3619995648 has 120 divisors (see below), whose sum is σ = 9864701952. Its totient is φ = 1180237824.

The previous prime is 3619995647. The next prime is 3619995661. The reversal of 3619995648 is 8465999163.

It is a junction number, because it is equal to n+sod(n) for n = 3619995591 and 3619995600.

It is not an unprimeable number, because it can be changed into a prime (3619995647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309361 + ... + 2310927.

Almost surely, 2^3619995648 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 3619995648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4932350976).

3619995648 is an abundant number, since it is smaller than the sum of its proper divisors (6244706304).

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

3619995648 is an equidigital number, since it uses as much as digits as its factorization.

3619995648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1619 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 60.

The square root of 3619995648 is about 60166.3996596107. The cubic root of 3619995648 is about 1535.4511928254.

The spelling of 3619995648 in words is "three billion, six hundred nineteen million, nine hundred ninety-five thousand, six hundred forty-eight".