4128931992 has 16 divisors (see below), whose sum is σ = 10322330040. Its totient is φ = 1376310656.

The previous prime is 4128931979. The next prime is 4128931993. The reversal of 4128931992 is 2991398214.

It is a super-2 number, since 2×4128931992² = 34096158789122176128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128931993) 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 3 ways as a sum of consecutive naturals, for example, 86019393 + ... + 86019440.

Almost surely, 2^4128931992 is an apocalyptic number.

It is an amenable number.

4128931992 is an abundant number, since it is smaller than the sum of its proper divisors (6193398048).

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

4128931992 is a wasteful number, since it uses less digits than its factorization.

4128931992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172038842 (or 172038838 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 4128931992 is about 64256.7661184408. The cubic root of 4128931992 is about 1604.2765789030.

The spelling of 4128931992 in words is "four billion, one hundred twenty-eight million, nine hundred thirty-one thousand, nine hundred ninety-two".