3861468909 has 32 divisors (see below), whose sum is σ = 5860577280. Its totient is φ = 2512036800.

The previous prime is 3861468881. The next prime is 3861468943. The reversal of 3861468909 is 9098641683.

3861468909 is a `hidden beast` number, since 38 + 61 + 468 + 90 + 9 = 666.

It is not a de Polignac number, because 3861468909 - 2¹³ = 3861460717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861468959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199939 + ... + 218399.

It is an arithmetic number, because the mean of its divisors is an integer number (183143040).

Almost surely, 2^3861468909 is an apocalyptic number.

It is an amenable number.

3861468909 is a deficient number, since it is larger than the sum of its proper divisors (1999108371).

3861468909 is a wasteful number, since it uses less digits than its factorization.

3861468909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18658 (or 18652 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 3861468909 is about 62140.7186070454. The cubic root of 3861468909 is about 1568.8599657861.

The spelling of 3861468909 in words is "three billion, eight hundred sixty-one million, four hundred sixty-eight thousand, nine hundred nine".