15013672081 has 4 divisors (see below), whose sum is σ = 15015935412. Its totient is φ = 15011408752.

The previous prime is 15013672067. The next prime is 15013672087. The reversal of 15013672081 is 18027631051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18027631051 = 9439 ⋅1909909.

It can be written as a sum of positive squares in 2 ways, for example, as 3496948225 + 11516723856 = 59135^2 + 107316^2 .

It is a cyclic number.

It is not a de Polignac number, because 15013672081 - 2⁵ = 15013672049 is a prime.

It is a super-2 number, since 2×15013672081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15013672087) 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, 1121686 + ... + 1134991.

It is an arithmetic number, because the mean of its divisors is an integer number (3753983853).

Almost surely, 2^15013672081 is an apocalyptic number.

It is an amenable number.

15013672081 is a deficient number, since it is larger than the sum of its proper divisors (2263331).

15013672081 is an equidigital number, since it uses as much as digits as its factorization.

15013672081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263330.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 15013672081 in words is "fifteen billion, thirteen million, six hundred seventy-two thousand, eighty-one".