15880952380873 has 2 divisors, whose sum is σ = 15880952380874. Its totient is φ = 15880952380872.

The previous prime is 15880952380861. The next prime is 15880952380877. The reversal of 15880952380873 is 37808325908851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14154810994944 + 1726141385929 = 3762288^2 + 1313827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15880952380873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15880952380799 and 15880952380808.

It is not a weakly prime, because it can be changed into another prime (15880952380877) 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, 7940476190436 + 7940476190437.

It is an arithmetic number, because the mean of its divisors is an integer number (7940476190437).

Almost surely, 2^{15880952380873} is an apocalyptic number.

It is an amenable number.

15880952380873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15880952380873 is an equidigital number, since it uses as much as digits as its factorization.

15880952380873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116121600, while the sum is 67.

The spelling of 15880952380873 in words is "fifteen trillion, eight hundred eighty billion, nine hundred fifty-two million, three hundred eighty thousand, eight hundred seventy-three".