15439097389 has 4 divisors (see below), whose sum is σ = 15439348000. Its totient is φ = 15438846780.

The previous prime is 15439097371. The next prime is 15439097393. The reversal of 15439097389 is 98379093451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98379093451 = 1061 ⋅92722991.

It is a cyclic number.

It is not a de Polignac number, because 15439097389 - 2⁵ = 15439097357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15439097329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38362 + ... + 179860.

It is an arithmetic number, because the mean of its divisors is an integer number (3859837000).

Almost surely, 2^15439097389 is an apocalyptic number.

It is an amenable number.

15439097389 is a deficient number, since it is larger than the sum of its proper divisors (250611).

15439097389 is a wasteful number, since it uses less digits than its factorization.

15439097389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250610.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 15439097389 in words is "fifteen billion, four hundred thirty-nine million, ninety-seven thousand, three hundred eighty-nine".