3912851688 has 16 divisors (see below), whose sum is σ = 9782129280. Its totient is φ = 1304283888.

The previous prime is 3912851681. The next prime is 3912851711. The reversal of 3912851688 is 8861582193.

It is a self number, because there is not a number n which added to its sum of digits gives 3912851688.

It is not an unprimeable number, because it can be changed into a prime (3912851681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81517720 + ... + 81517767.

It is an arithmetic number, because the mean of its divisors is an integer number (611383080).

Almost surely, 2^3912851688 is an apocalyptic number.

It is an amenable number.

3912851688 is an abundant number, since it is smaller than the sum of its proper divisors (5869277592).

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

3912851688 is a wasteful number, since it uses less digits than its factorization.

3912851688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163035496 (or 163035492 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 3912851688 is about 62552.7912087063. The cubic root of 3912851688 is about 1575.7880243043.

The spelling of 3912851688 in words is "three billion, nine hundred twelve million, eight hundred fifty-one thousand, six hundred eighty-eight".