3971828971830 has 16 divisors (see below), whose sum is σ = 9532389532464. Its totient is φ = 1059154392480.

The previous prime is 3971828971829. The next prime is 3971828971897. The reversal of 3971828971830 is 381798281793.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66197149501 + ... + 66197149560.

It is an arithmetic number, because the mean of its divisors is an integer number (595774345779).

Almost surely, 2^{3971828971830} is an apocalyptic number.

3971828971830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3971828971830 is an abundant number, since it is smaller than the sum of its proper divisors (5560560560634).

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

3971828971830 is a wasteful number, since it uses less digits than its factorization.

3971828971830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132394299071.

The product of its (nonzero) digits is 36578304, while the sum is 66.

The spelling of 3971828971830 in words is "three trillion, nine hundred seventy-one billion, eight hundred twenty-eight million, nine hundred seventy-one thousand, eight hundred thirty".