3981359564 has 36 divisors (see below), whose sum is σ = 8728370784. Its totient is φ = 1575042336.

The previous prime is 3981359563. The next prime is 3981359611. The reversal of 3981359564 is 4659531893.

It is not an unprimeable number, because it can be changed into a prime (3981359561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778724 + ... + 783819.

It is an arithmetic number, because the mean of its divisors is an integer number (242454744).

Almost surely, 2^3981359564 is an apocalyptic number.

It is an amenable number.

3981359564 is an abundant number, since it is smaller than the sum of its proper divisors (4747011220).

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

3981359564 is a wasteful number, since it uses less digits than its factorization.

3981359564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562574 (or 1562565 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 53.

The square root of 3981359564 is about 63098.0155313937. The cubic root of 3981359564 is about 1584.9313910468.

The spelling of 3981359564 in words is "three billion, nine hundred eighty-one million, three hundred fifty-nine thousand, five hundred sixty-four".