389091900100 has 36 divisors (see below), whose sum is σ = 867149145604. Its totient is φ = 151430359680.

The previous prime is 389091900091. The next prime is 389091900103. The reversal of 389091900100 is 1009190983.

It can be written as a sum of positive squares in 6 ways, for example, as 10601173444 + 378490726656 = 102962^2 + 615216^2 .

It is not an unprimeable number, because it can be changed into a prime (389091900103) 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, 52576287 + ... + 52583686.

Almost surely, 2^389091900100 is an apocalyptic number.

It is an amenable number.

389091900100 is an abundant number, since it is smaller than the sum of its proper divisors (478057245504).

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

389091900100 is a wasteful number, since it uses less digits than its factorization.

389091900100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105160024 (or 105160017 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 389091900100 in words is "three hundred eighty-nine billion, ninety-one million, nine hundred thousand, one hundred".