389828288644 has 24 divisors (see below), whose sum is σ = 712030108608. Its totient is φ = 186395156640.

The previous prime is 389828288581. The next prime is 389828288671. The reversal of 389828288644 is 446882828983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115707 + ... + 890530.

It is an arithmetic number, because the mean of its divisors is an integer number (29667921192).

Almost surely, 2^389828288644 is an apocalyptic number.

It is an amenable number.

389828288644 is a deficient number, since it is larger than the sum of its proper divisors (322201819964).

389828288644 is a wasteful number, since it uses less digits than its factorization.

389828288644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010475 (or 1010473 counting only the distinct ones).

The product of its digits is 339738624, while the sum is 70.

The spelling of 389828288644 in words is "three hundred eighty-nine billion, eight hundred twenty-eight million, two hundred eighty-eight thousand, six hundred forty-four".