3855837988 has 6 divisors (see below), whose sum is σ = 6747716486. Its totient is φ = 1927918992.

The previous prime is 3855837977. The next prime is 3855837991. The reversal of 3855837988 is 8897385583.

It can be written as a sum of positive squares in only one way, i.e., 2826198244 + 1029639744 = 53162^2 + 32088^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481979745 + ... + 481979752.

Almost surely, 2^3855837988 is an apocalyptic number.

It is an amenable number.

3855837988 is a deficient number, since it is larger than the sum of its proper divisors (2891878498).

3855837988 is a wasteful number, since it uses less digits than its factorization.

3855837988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963959501 (or 963959499 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 64.

The square root of 3855837988 is about 62095.3942575454. The cubic root of 3855837988 is about 1568.0970070702.

The spelling of 3855837988 in words is "three billion, eight hundred fifty-five million, eight hundred thirty-seven thousand, nine hundred eighty-eight".