3831648820 has 48 divisors (see below), whose sum is σ = 8180057088. Its totient is φ = 1507334400.

The previous prime is 3831648767. The next prime is 3831648827. The reversal of 3831648820 is 288461383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831648827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532245 + ... + 539395.

It is an arithmetic number, because the mean of its divisors is an integer number (170417856).

Almost surely, 2^3831648820 is an apocalyptic number.

It is an amenable number.

3831648820 is an abundant number, since it is smaller than the sum of its proper divisors (4348408268).

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

3831648820 is a wasteful number, since it uses less digits than its factorization.

3831648820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600 (or 7598 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 3831648820 is about 61900.3135694804. The cubic root of 3831648820 is about 1564.8110323816.

The spelling of 3831648820 in words is "three billion, eight hundred thirty-one million, six hundred forty-eight thousand, eight hundred twenty".