15503214047873 has 2 divisors, whose sum is σ = 15503214047874. Its totient is φ = 15503214047872.

The previous prime is 15503214047861. The next prime is 15503214047887. The reversal of 15503214047873 is 37874041230551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12393976578064 + 3109237469809 = 3520508^2 + 1763303^2 .

It is a cyclic number.

It is not a de Polignac number, because 15503214047873 - 2¹⁶ = 15503213982337 is a prime.

It is not a weakly prime, because it can be changed into another prime (15503210047873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7751607023936 + 7751607023937.

It is an arithmetic number, because the mean of its divisors is an integer number (7751607023937).

Almost surely, 2^{15503214047873} is an apocalyptic number.

It is an amenable number.

15503214047873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15503214047873 is an equidigital number, since it uses as much as digits as its factorization.

15503214047873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 15503214047873 in words is "fifteen trillion, five hundred three billion, two hundred fourteen million, forty-seven thousand, eight hundred seventy-three".