1872963648 has 140 divisors (see below), whose sum is σ = 5571459520. Its totient is φ = 622142208.

The previous prime is 1872963647. The next prime is 1872963689. The reversal of 1872963648 is 8463692781.

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

It is a junction number, because it is equal to n+sod(n) for n = 1872963594 and 1872963603.

It is not an unprimeable number, because it can be changed into a prime (1872963647) 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 19 ways as a sum of consecutive naturals, for example, 2275365 + ... + 2276187.

Almost surely, 2^1872963648 is an apocalyptic number.

1872963648 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 1872963648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2785729760).

1872963648 is an abundant number, since it is smaller than the sum of its proper divisors (3698495872).

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

1872963648 is an equidigital number, since it uses as much as digits as its factorization.

1872963648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1267 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1872963648 is about 43277.7500339378. The cubic root of 1872963648 is about 1232.6594687145.

The spelling of 1872963648 in words is "one billion, eight hundred seventy-two million, nine hundred sixty-three thousand, six hundred forty-eight".