15113776489 has 4 divisors (see below), whose sum is σ = 17272887424. Its totient is φ = 12954665556.

The previous prime is 15113776481. The next prime is 15113776501. The reversal of 15113776489 is 98467731151.

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 an emirpimes, since its reverse is a distinct semiprime: 98467731151 = 63463 ⋅1551577.

It is not a de Polignac number, because 15113776489 - 2³ = 15113776481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15113776481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079555457 + ... + 1079555470.

It is an arithmetic number, because the mean of its divisors is an integer number (4318221856).

Almost surely, 2^15113776489 is an apocalyptic number.

It is an amenable number.

15113776489 is a deficient number, since it is larger than the sum of its proper divisors (2159110935).

15113776489 is an equidigital number, since it uses as much as digits as its factorization.

15113776489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159110934.

The product of its digits is 1270080, while the sum is 52.

The spelling of 15113776489 in words is "fifteen billion, one hundred thirteen million, seven hundred seventy-six thousand, four hundred eighty-nine".