15793684081 has 4 divisors (see below), whose sum is σ = 18049924672. Its totient is φ = 13537443492.

The previous prime is 15793684073. The next prime is 15793684121. The reversal of 15793684081 is 18048639751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18048639751 = 10337 ⋅1746023.

It is a cyclic number.

It is not a de Polignac number, because 15793684081 - 2³ = 15793684073 is a prime.

It is a super-2 number, since 2×15793684081² (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 (15793684061) 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, 1128120285 + ... + 1128120298.

It is an arithmetic number, because the mean of its divisors is an integer number (4512481168).

Almost surely, 2^15793684081 is an apocalyptic number.

It is an amenable number.

15793684081 is a deficient number, since it is larger than the sum of its proper divisors (2256240591).

15793684081 is an equidigital number, since it uses as much as digits as its factorization.

15793684081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256240590.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 15793684081 in words is "fifteen billion, seven hundred ninety-three million, six hundred eighty-four thousand, eighty-one".