15299473806 has 64 divisors (see below), whose sum is σ = 34681262400. Its totient is φ = 4998067200.

The previous prime is 15299473757. The next prime is 15299473811. The reversal of 15299473806 is 60837499251.

15299473806 is a `hidden beast` number, since 1 + 5 + 2 + 99 + 473 + 80 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 917350 + ... + 933878.

It is an arithmetic number, because the mean of its divisors is an integer number (541894725).

It is a 2-persistent number, because it is pandigital, and so is 2⋅15299473806 = 30598947612, but 3⋅15299473806 = 45898421418 is not.

Almost surely, 2^15299473806 is an apocalyptic number.

15299473806 is the 66116-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15299473806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17340631200).

15299473806 is an abundant number, since it is smaller than the sum of its proper divisors (19381788594).

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

15299473806 is a wasteful number, since it uses less digits than its factorization.

15299473806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16882 (or 16876 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 15299473806 in words is "fifteen billion, two hundred ninety-nine million, four hundred seventy-three thousand, eight hundred six".