3861991024 has 10 divisors (see below), whose sum is σ = 7482607640. Its totient is φ = 1930995504.

The previous prime is 3861990971. The next prime is 3861991037. The reversal of 3861991024 is 4201991683.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120687204 + ... + 120687235.

It is an arithmetic number, because the mean of its divisors is an integer number (748260764).

Almost surely, 2^3861991024 is an apocalyptic number.

It is an amenable number.

3861991024 is a deficient number, since it is larger than the sum of its proper divisors (3620616616).

3861991024 is a wasteful number, since it uses less digits than its factorization.

3861991024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241374447 (or 241374441 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3861991024 is about 62144.9195349065. The cubic root of 3861991024 is about 1568.9306719020.

The spelling of 3861991024 in words is "three billion, eight hundred sixty-one million, nine hundred ninety-one thousand, twenty-four".