1389536362404 has 18 divisors (see below), whose sum is σ = 3512439138390. Its totient is φ = 463178787456.

The previous prime is 1389536362397. The next prime is 1389536362447. The reversal of 1389536362404 is 4042636359831.

1389536362404 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 5 + 3 + 6 + 3 + 624 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1382863106304 + 6673256100 = 1175952^2 + 81690^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1389536362404² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19299116109 + ... + 19299116180.

Almost surely, 2^{1389536362404} is an apocalyptic number.

It is an amenable number.

1389536362404 is an abundant number, since it is smaller than the sum of its proper divisors (2122902775986).

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

1389536362404 is a wasteful number, since it uses less digits than its factorization.

1389536362404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38598232299 (or 38598232294 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 1389536362404 in words is "one trillion, three hundred eighty-nine billion, five hundred thirty-six million, three hundred sixty-two thousand, four hundred four".