3961529888 has 12 divisors (see below), whose sum is σ = 7799262030. Its totient is φ = 1980764928.

The previous prime is 3961529879. The next prime is 3961529903. The reversal of 3961529888 is 8889251693.

It can be written as a sum of positive squares in only one way, i.e., 3900252304 + 61277584 = 62452^2 + 7828^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61898873 + ... + 61898936.

Almost surely, 2^3961529888 is an apocalyptic number.

It is an amenable number.

3961529888 is a deficient number, since it is larger than the sum of its proper divisors (3837732142).

3961529888 is a wasteful number, since it uses less digits than its factorization.

3961529888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123797819 (or 123797811 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 59.

The square root of 3961529888 is about 62940.6854745005. The cubic root of 3961529888 is about 1582.2956918161.

The spelling of 3961529888 in words is "three billion, nine hundred sixty-one million, five hundred twenty-nine thousand, eight hundred eighty-eight".