389368781472 has 96 divisors (see below), whose sum is σ = 1116513538560. Its totient is φ = 117831499520.

The previous prime is 389368781437. The next prime is 389368781491. The reversal of 389368781472 is 274187863983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536479 + ... + 1032737.

It is an arithmetic number, because the mean of its divisors is an integer number (11630349360).

Almost surely, 2^389368781472 is an apocalyptic number.

389368781472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389368781472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558256769280).

389368781472 is an abundant number, since it is smaller than the sum of its proper divisors (727144757088).

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

389368781472 is a wasteful number, since it uses less digits than its factorization.

389368781472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497026 (or 497018 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 66.

The spelling of 389368781472 in words is "three hundred eighty-nine billion, three hundred sixty-eight million, seven hundred eighty-one thousand, four hundred seventy-two".