1980612088 has 64 divisors (see below), whose sum is σ = 4596480000. Its totient is φ = 779110272.

The previous prime is 1980612083. The next prime is 1980612091. The reversal of 1980612088 is 8802160891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980612083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122713 + ... + 137911.

It is an arithmetic number, because the mean of its divisors is an integer number (71820000).

Almost surely, 2^1980612088 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 1980612088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240000).

1980612088 is an abundant number, since it is smaller than the sum of its proper divisors (2615867912).

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

1980612088 is a wasteful number, since it uses less digits than its factorization.

1980612088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15404 (or 15400 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 1980612088 is about 44504.0682185348. The cubic root of 1980612088 is about 1255.8366168128.

The spelling of 1980612088 in words is "one billion, nine hundred eighty million, six hundred twelve thousand, eighty-eight".