2031988128 has 48 divisors (see below), whose sum is σ = 5337783360. Its totient is φ = 676845056.

The previous prime is 2031988099. The next prime is 2031988139. The reversal of 2031988128 is 8218891302.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2031988128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142876 + ... + 156452.

It is an arithmetic number, because the mean of its divisors is an integer number (111203820).

Almost surely, 2^2031988128 is an apocalyptic number.

It is an amenable number.

2031988128 is an abundant number, since it is smaller than the sum of its proper divisors (3305795232).

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

2031988128 is a wasteful number, since it uses less digits than its factorization.

2031988128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15149 (or 15141 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 2031988128 is about 45077.5789944402. The cubic root of 2031988128 is about 1266.6026395460.

The spelling of 2031988128 in words is "two billion, thirty-one million, nine hundred eighty-eight thousand, one hundred twenty-eight".