3861680292 has 48 divisors (see below), whose sum is σ = 10334732800. Its totient is φ = 1245702240.

The previous prime is 3861680287. The next prime is 3861680299. The reversal of 3861680292 is 2920861683.

3861680292 is a `hidden beast` number, since 3 + 8 + 616 + 8 + 0 + 29 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (3861680299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573367 + ... + 580062.

Almost surely, 2^3861680292 is an apocalyptic number.

It is an amenable number.

3861680292 is an abundant number, since it is smaller than the sum of its proper divisors (6473052508).

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

3861680292 is a wasteful number, since it uses less digits than its factorization.

3861680292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153473 (or 1153465 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 3861680292 is about 62142.4194250594. The cubic root of 3861680292 is about 1568.8885925671. Note that the first 3 decimals are identical.

The spelling of 3861680292 in words is "three billion, eight hundred sixty-one million, six hundred eighty thousand, two hundred ninety-two".