1980873216 has 360 divisors, whose sum is σ = 6889094784. Its totient is φ = 545771520.

The previous prime is 1980873203. The next prime is 1980873277. The reversal of 1980873216 is 6123780891.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6999411 + ... + 6999693.

Almost surely, 2^1980873216 is an apocalyptic number.

1980873216 is a gapful number since it is divisible by the number (16) 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 1980873216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3444547392).

1980873216 is an abundant number, since it is smaller than the sum of its proper divisors (4908221568).

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

1980873216 is a wasteful number, since it uses less digits than its factorization.

1980873216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1980873216 is about 44507.0018761093. The cubic root of 1980873216 is about 1255.8918050877.

The spelling of 1980873216 in words is "one billion, nine hundred eighty million, eight hundred seventy-three thousand, two hundred sixteen".