1988026180928 has 28 divisors (see below), whose sum is σ = 3945251380500. Its totient is φ = 993947092992.

The previous prime is 1988026180901. The next prime is 1988026181003. The reversal of 1988026180928 is 8290816208891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1789901488384 + 198124692544 = 1337872^2 + 445112^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52553 + ... + 1994696.

Almost surely, 2^{1988026180928} is an apocalyptic number.

It is an amenable number.

1988026180928 is a deficient number, since it is larger than the sum of its proper divisors (1957225199572).

1988026180928 is a wasteful number, since it uses less digits than its factorization.

1988026180928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062434 (or 2062424 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 62.

The spelling of 1988026180928 in words is "one trillion, nine hundred eighty-eight billion, twenty-six million, one hundred eighty thousand, nine hundred twenty-eight".