1641089824 has 48 divisors (see below), whose sum is σ = 3537547776. Its totient is φ = 743212800.

The previous prime is 1641089761. The next prime is 1641089839. The reversal of 1641089824 is 4289801461.

It is an unprimeable number.

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, 89089 + ... + 105919.

It is an arithmetic number, because the mean of its divisors is an integer number (73698912).

Almost surely, 2^1641089824 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 1641089824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768773888).

1641089824 is an abundant number, since it is smaller than the sum of its proper divisors (1896457952).

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

1641089824 is a wasteful number, since it uses less digits than its factorization.

1641089824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17129 (or 17121 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1641089824 is about 40510.3668707159. The cubic root of 1641089824 is about 1179.5348698256.

The spelling of 1641089824 in words is "one billion, six hundred forty-one million, eighty-nine thousand, eight hundred twenty-four".