3909947712 has 56 divisors (see below), whose sum is σ = 11285536992. Its totient is φ = 1184832000.

The previous prime is 3909947687. The next prime is 3909947753. The reversal of 3909947712 is 2177499093.

It is a super-2 number, since 2×3909947712² = 30575382221148069888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923539 + ... + 927762.

Almost surely, 2^3909947712 is an apocalyptic number.

3909947712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3909947712 is an abundant number, since it is smaller than the sum of its proper divisors (7375589280).

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

3909947712 is a wasteful number, since it uses less digits than its factorization.

3909947712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851327 (or 1851317 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 3909947712 is about 62529.5746986976. The cubic root of 3909947712 is about 1575.3980970002.

The spelling of 3909947712 in words is "three billion, nine hundred nine million, nine hundred forty-seven thousand, seven hundred twelve".