15394489389 has 12 divisors (see below), whose sum is σ = 22238673600. Its totient is φ = 10261982664.

The previous prime is 15394489381. The next prime is 15394489459. The reversal of 15394489389 is 98398449351.

15394489389 is a `hidden beast` number, since 1 + 539 + 4 + 4 + 8 + 93 + 8 + 9 = 666.

It is not a de Polignac number, because 15394489389 - 2³ = 15394489381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15394489381) 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, 18972 + ... + 176490.

It is an arithmetic number, because the mean of its divisors is an integer number (1853222800).

Almost surely, 2^15394489389 is an apocalyptic number.

It is an amenable number.

15394489389 is a deficient number, since it is larger than the sum of its proper divisors (6844184211).

15394489389 is a wasteful number, since it uses less digits than its factorization.

15394489389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168384 (or 168381 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 15394489389 in words is "fifteen billion, three hundred ninety-four million, four hundred eighty-nine thousand, three hundred eighty-nine".