3641994846 has 64 divisors (see below), whose sum is σ = 9651686400. Its totient is φ = 995325408.

The previous prime is 3641994833. The next prime is 3641994857. The reversal of 3641994846 is 6484991463.

It is a happy number.

3641994846 is a `hidden beast` number, since 36 + 41 + 99 + 484 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3641994792 and 3641994801.

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 31 ways as a sum of consecutive naturals, for example, 200761 + ... + 218148.

It is an arithmetic number, because the mean of its divisors is an integer number (150807600).

Almost surely, 2^3641994846 is an apocalyptic number.

3641994846 is an abundant number, since it is smaller than the sum of its proper divisors (6009691554).

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

3641994846 is a wasteful number, since it uses less digits than its factorization.

3641994846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418950 (or 418944 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 3641994846 is about 60348.9423768139. The cubic root of 3641994846 is about 1538.5552940723. Note that the first 3 decimals are identical.

The spelling of 3641994846 in words is "three billion, six hundred forty-one million, nine hundred ninety-four thousand, eight hundred forty-six".