1645526848 has 56 divisors (see below), whose sum is σ = 3738376064. Its totient is φ = 703987200.

The previous prime is 1645526819. The next prime is 1645526899. The reversal of 1645526848 is 8486255461.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 279778 + ... + 285598.

Almost surely, 2^1645526848 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 1645526848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869188032).

1645526848 is an abundant number, since it is smaller than the sum of its proper divisors (2092849216).

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

1645526848 is an equidigital number, since it uses as much as digits as its factorization.

1645526848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6471 (or 6461 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 49.

The square root of 1645526848 is about 40565.0939602018. The cubic root of 1645526848 is about 1180.5969516192.

The spelling of 1645526848 in words is "one billion, six hundred forty-five million, five hundred twenty-six thousand, eight hundred forty-eight".