3912351620 has 24 divisors (see below), whose sum is σ = 8217192984. Its totient is φ = 1564701696.

The previous prime is 3912351613. The next prime is 3912351629. The reversal of 3912351620 is 261532193.

It can be written as a sum of positive squares in 4 ways, for example, as 837870916 + 3074480704 = 28946^2 + 55448^2 .

It is not an unprimeable number, because it can be changed into a prime (3912351629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 183854 + ... + 204026.

It is an arithmetic number, because the mean of its divisors is an integer number (342383041).

Almost surely, 2^3912351620 is an apocalyptic number.

It is an amenable number.

3912351620 is an abundant number, since it is smaller than the sum of its proper divisors (4304841364).

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

3912351620 is a wasteful number, since it uses less digits than its factorization.

3912351620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29879 (or 29877 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3912351620 is about 62548.7939132323. The cubic root of 3912351620 is about 1575.7208921289.

The spelling of 3912351620 in words is "three billion, nine hundred twelve million, three hundred fifty-one thousand, six hundred twenty".