3897663660650 has 24 divisors (see below), whose sum is σ = 7269408269760. Its totient is φ = 1554817322160.

The previous prime is 3897663660647. The next prime is 3897663660659. The reversal of 3897663660650 is 560663667983.

It is not an unprimeable number, because it can be changed into a prime (3897663660659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106185020 + ... + 106221719.

It is an arithmetic number, because the mean of its divisors is an integer number (302892011240).

Almost surely, 2^{3897663660650} is an apocalyptic number.

3897663660650 is a deficient number, since it is larger than the sum of its proper divisors (3371744609110).

3897663660650 is a wasteful number, since it uses less digits than its factorization.

3897663660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212407118 (or 212407113 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 65.

The spelling of 3897663660650 in words is "three trillion, eight hundred ninety-seven billion, six hundred sixty-three million, six hundred sixty thousand, six hundred fifty".