3897409140650 has 36 divisors (see below), whose sum is σ = 7306712128998. Its totient is φ = 1546688031840.

The previous prime is 3897409140649. The next prime is 3897409140661. The reversal of 3897409140650 is 560419047983.

It can be written as a sum of positive squares in 3 ways, for example, as 2234776836889 + 1662632303761 = 1494917^2 + 1289431^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1609949 + ... + 3222848.

Almost surely, 2^{3897409140650} is an apocalyptic number.

3897409140650 is a deficient number, since it is larger than the sum of its proper divisors (3409302988348).

3897409140650 is a wasteful number, since it uses less digits than its factorization.

3897409140650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833063 (or 4832931 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 3897409140650 in words is "three trillion, eight hundred ninety-seven billion, four hundred nine million, one hundred forty thousand, six hundred fifty".