385788169644 has 12 divisors (see below), whose sum is σ = 900172395864. Its totient is φ = 128596056544.

The previous prime is 385788169607. The next prime is 385788169649. The reversal of 385788169644 is 446961887583.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (385788169649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16074507057 + ... + 16074507080.

It is an arithmetic number, because the mean of its divisors is an integer number (75014366322).

Almost surely, 2^385788169644 is an apocalyptic number.

It is an amenable number.

385788169644 is an abundant number, since it is smaller than the sum of its proper divisors (514384226220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385788169644 is a wasteful number, since it uses less digits than its factorization.

385788169644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32149014144 (or 32149014142 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 69.

The spelling of 385788169644 in words is "three hundred eighty-five billion, seven hundred eighty-eight million, one hundred sixty-nine thousand, six hundred forty-four".