15481874159 has 4 divisors (see below), whose sum is σ = 15484331304. Its totient is φ = 15479417016.

The previous prime is 15481874153. The next prime is 15481874171. The reversal of 15481874159 is 95147818451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15481874159 is a prime.

It is a super-2 number, since 2×15481874159² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15481874159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15481874153) 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, 1219097 + ... + 1231730.

It is an arithmetic number, because the mean of its divisors is an integer number (3871082826).

Almost surely, 2^15481874159 is an apocalyptic number.

15481874159 is a deficient number, since it is larger than the sum of its proper divisors (2457145).

15481874159 is an equidigital number, since it uses as much as digits as its factorization.

15481874159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457144.

The product of its digits is 1612800, while the sum is 53.

The spelling of 15481874159 in words is "fifteen billion, four hundred eighty-one million, eight hundred seventy-four thousand, one hundred fifty-nine".