15078722873 has 2 divisors, whose sum is σ = 15078722874. Its totient is φ = 15078722872.

The previous prime is 15078722821. The next prime is 15078722891. The reversal of 15078722873 is 37822787051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15024140329 + 54582544 = 122573^2 + 7388^2 .

It is a cyclic number.

It is not a de Polignac number, because 15078722873 - 2⁶ = 15078722809 is a prime.

It is not a weakly prime, because it can be changed into another prime (15078722473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7539361436 + 7539361437.

It is an arithmetic number, because the mean of its divisors is an integer number (7539361437).

Almost surely, 2^15078722873 is an apocalyptic number.

It is an amenable number.

15078722873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15078722873 is an equidigital number, since it uses as much as digits as its factorization.

15078722873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 15078722873 in words is "fifteen billion, seventy-eight million, seven hundred twenty-two thousand, eight hundred seventy-three".