15402660073 has 2 divisors, whose sum is σ = 15402660074. Its totient is φ = 15402660072.

The previous prime is 15402660047. The next prime is 15402660089. The reversal of 15402660073 is 37006620451.

It is a happy number.

15402660073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15039833769 + 362826304 = 122637^2 + 19048^2 .

It is a cyclic number.

It is not a de Polignac number, because 15402660073 - 2⁹ = 15402659561 is a prime.

It is not a weakly prime, because it can be changed into another prime (15402664073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7701330036 + 7701330037.

It is an arithmetic number, because the mean of its divisors is an integer number (7701330037).

Almost surely, 2^15402660073 is an apocalyptic number.

It is an amenable number.

15402660073 is a deficient number, since it is larger than the sum of its proper divisors (1).

15402660073 is an equidigital number, since it uses as much as digits as its factorization.

15402660073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 15402660073 in words is "fifteen billion, four hundred two million, six hundred sixty thousand, seventy-three".