1800747648 has 576 divisors, whose sum is σ = 6711681600. Its totient is φ = 459841536.

The previous prime is 1800747569. The next prime is 1800747691. The reversal of 1800747648 is 8467470081.

It is a tau number, because it is divible by the number of its divisors (576).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24667740 + ... + 24667812.

It is an arithmetic number, because the mean of its divisors is an integer number (11652225).

Almost surely, 2^1800747648 is an apocalyptic number.

1800747648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800747648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3355840800).

1800747648 is an abundant number, since it is smaller than the sum of its proper divisors (4910933952).

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

1800747648 is a wasteful number, since it uses less digits than its factorization.

1800747648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1800747648 is about 42435.2170726155. The cubic root of 1800747648 is about 1216.6087960298.

The spelling of 1800747648 in words is "one billion, eight hundred million, seven hundred forty-seven thousand, six hundred forty-eight".