3961660468 has 6 divisors (see below), whose sum is σ = 6932905826. Its totient is φ = 1980830232.

The previous prime is 3961660459. The next prime is 3961660499. The reversal of 3961660468 is 8640661693.

It can be written as a sum of positive squares in only one way, i.e., 2466910224 + 1494750244 = 49668^2 + 38662^2 .

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, 495207555 + ... + 495207562.

Almost surely, 2^3961660468 is an apocalyptic number.

It is an amenable number.

3961660468 is a deficient number, since it is larger than the sum of its proper divisors (2971245358).

3961660468 is a wasteful number, since it uses less digits than its factorization.

3961660468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990415121 (or 990415119 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 3961660468 is about 62941.7227918016. The cubic root of 3961660468 is about 1582.3130768422.

The spelling of 3961660468 in words is "three billion, nine hundred sixty-one million, six hundred sixty thousand, four hundred sixty-eight".