15488920617 has 8 divisors (see below), whose sum is σ = 20669209824. Its totient is φ = 10317289248.

The previous prime is 15488920519. The next prime is 15488920633. The reversal of 15488920617 is 71602988451.

15488920617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15488920617 - 2⁸ = 15488920361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15488920617.

It is not an unprimeable number, because it can be changed into a prime (15488920687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2160283 + ... + 2167440.

It is an arithmetic number, because the mean of its divisors is an integer number (2583651228).

Almost surely, 2^15488920617 is an apocalyptic number.

It is an amenable number.

15488920617 is a deficient number, since it is larger than the sum of its proper divisors (5180289207).

15488920617 is a wasteful number, since it uses less digits than its factorization.

15488920617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328919.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 15488920617 in words is "fifteen billion, four hundred eighty-eight million, nine hundred twenty thousand, six hundred seventeen".