4271991000 has 64 divisors (see below), whose sum is σ = 13328621280. Its totient is φ = 1139196800.

The previous prime is 4271990999. The next prime is 4271991019. The reversal of 4271991000 is 1991724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708999 + ... + 714998.

Almost surely, 2^4271991000 is an apocalyptic number.

4271991000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4271991000 is an abundant number, since it is smaller than the sum of its proper divisors (9056630280).

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

4271991000 is a wasteful number, since it uses less digits than its factorization.

4271991000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424021 (or 1424007 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 4271991000 is about 65360.4697045546. The cubic root of 4271991000 is about 1622.5949115223.

The spelling of 4271991000 in words is "four billion, two hundred seventy-one million, nine hundred ninety-one thousand".