3858969619646 has 16 divisors (see below), whose sum is σ = 5800565347200. Its totient is φ = 1925448145560.

The previous prime is 3858969619643. The next prime is 3858969619663. The reversal of 3858969619646 is 6469169698583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858969619643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31858505 + ... + 31979403.

It is an arithmetic number, because the mean of its divisors is an integer number (362535334200).

Almost surely, 2^{3858969619646} is an apocalyptic number.

3858969619646 is a deficient number, since it is larger than the sum of its proper divisors (1941595727554).

3858969619646 is a wasteful number, since it uses less digits than its factorization.

3858969619646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154159.

The product of its digits is 3627970560, while the sum is 80.

The spelling of 3858969619646 in words is "three trillion, eight hundred fifty-eight billion, nine hundred sixty-nine million, six hundred nineteen thousand, six hundred forty-six".