3651842916 has 18 divisors (see below), whose sum is σ = 9231047462. Its totient is φ = 1217280960.

The previous prime is 3651842891. The next prime is 3651842933. The reversal of 3651842916 is 6192481563.

3651842916 is a `hidden beast` number, since 3 + 6 + 518 + 42 + 91 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1979360100 + 1672482816 = 44490^2 + 40896^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 50720005 + ... + 50720076.

Almost surely, 2^3651842916 is an apocalyptic number.

3651842916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3651842916 is an abundant number, since it is smaller than the sum of its proper divisors (5579204546).

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

3651842916 is a wasteful number, since it uses less digits than its factorization.

3651842916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101440091 (or 101440086 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3651842916 is about 60430.4800245704. The cubic root of 3651842916 is about 1539.9408134896.

The spelling of 3651842916 in words is "three billion, six hundred fifty-one million, eight hundred forty-two thousand, nine hundred sixteen".