15323617104977 has 2 divisors, whose sum is σ = 15323617104978. Its totient is φ = 15323617104976.

The previous prime is 15323617104959. The next prime is 15323617105001. The reversal of 15323617104977 is 77940171632351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15123768767041 + 199848337936 = 3888929^2 + 447044^2 .

It is a cyclic number.

It is not a de Polignac number, because 15323617104977 - 2¹⁶ = 15323617039441 is a prime.

It is not a weakly prime, because it can be changed into another prime (15323617104877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7661808552488 + 7661808552489.

It is an arithmetic number, because the mean of its divisors is an integer number (7661808552489).

Almost surely, 2^{15323617104977} is an apocalyptic number.

It is an amenable number.

15323617104977 is a deficient number, since it is larger than the sum of its proper divisors (1).

15323617104977 is an equidigital number, since it uses as much as digits as its factorization.

15323617104977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6667920, while the sum is 56.

The spelling of 15323617104977 in words is "fifteen trillion, three hundred twenty-three billion, six hundred seventeen million, one hundred four thousand, nine hundred seventy-seven".