15504994768 has 40 divisors (see below), whose sum is σ = 31514590080. Its totient is φ = 7379729280.

The previous prime is 15504994741. The next prime is 15504994787. The reversal of 15504994768 is 86749940551.

15504994768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

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, 202380 + ... + 268267.

It is an arithmetic number, because the mean of its divisors is an integer number (787864752).

Almost surely, 2^15504994768 is an apocalyptic number.

It is an amenable number.

15504994768 is an abundant number, since it is smaller than the sum of its proper divisors (16009595312).

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

15504994768 is a wasteful number, since it uses less digits than its factorization.

15504994768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470755 (or 470749 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 15504994768 in words is "fifteen billion, five hundred four million, nine hundred ninety-four thousand, seven hundred sixty-eight".