3866851902 has 32 divisors (see below), whose sum is σ = 7844947200. Its totient is φ = 1270434240.

The previous prime is 3866851897. The next prime is 3866851903. The reversal of 3866851902 is 2091586683.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866851903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180527 + ... + 1183797.

It is an arithmetic number, because the mean of its divisors is an integer number (245154600).

Almost surely, 2^3866851902 is an apocalyptic number.

3866851902 is an abundant number, since it is smaller than the sum of its proper divisors (3978095298).

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

3866851902 is a wasteful number, since it uses less digits than its factorization.

3866851902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 3866851902 is about 62184.0164511750. The cubic root of 3866851902 is about 1569.5886384913.

The spelling of 3866851902 in words is "three billion, eight hundred sixty-six million, eight hundred fifty-one thousand, nine hundred two".