15926410081 has 2 divisors, whose sum is σ = 15926410082. Its totient is φ = 15926410080.

The previous prime is 15926410069. The next prime is 15926410091. The reversal of 15926410081 is 18001462951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8319081681 + 7607328400 = 91209^2 + 87220^2 .

It is an emirp because it is prime and its reverse (18001462951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15926410081 is a prime.

It is a super-3 number, since 3×15926410081³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 15926410081.

It is not a weakly prime, because it can be changed into another prime (15926410091) 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 as a sum of consecutive naturals, namely, 7963205040 + 7963205041.

It is an arithmetic number, because the mean of its divisors is an integer number (7963205041).

Almost surely, 2^15926410081 is an apocalyptic number.

It is an amenable number.

15926410081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15926410081 is an equidigital number, since it uses as much as digits as its factorization.

15926410081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 15926410081 in words is "fifteen billion, nine hundred twenty-six million, four hundred ten thousand, eighty-one".