3615649620 has 96 divisors (see below), whose sum is σ = 11342733696. Its totient is φ = 852825600.

The previous prime is 3615649603. The next prime is 3615649621. The reversal of 3615649620 is 269465163.

It is a super-2 number, since 2×3615649620² = 26145844349212288800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3615649621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 49611 + ... + 98450.

It is an arithmetic number, because the mean of its divisors is an integer number (118153476).

Almost surely, 2^3615649620 is an apocalyptic number.

3615649620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3615649620 is an abundant number, since it is smaller than the sum of its proper divisors (7727084076).

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

3615649620 is a wasteful number, since it uses less digits than its factorization.

3615649620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148121 (or 148119 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 3615649620 is about 60130.2720765506. The cubic root of 3615649620 is about 1534.8364788126.

The spelling of 3615649620 in words is "three billion, six hundred fifteen million, six hundred forty-nine thousand, six hundred twenty".