15480733729 has 2 divisors, whose sum is σ = 15480733730. Its totient is φ = 15480733728.

The previous prime is 15480733679. The next prime is 15480733747. The reversal of 15480733729 is 92733708451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10246500625 + 5234233104 = 101225^2 + 72348^2 .

It is an emirp because it is prime and its reverse (92733708451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15480733729 - 2⁷ = 15480733601 is a prime.

It is not a weakly prime, because it can be changed into another prime (15480733799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7740366864 + 7740366865.

It is an arithmetic number, because the mean of its divisors is an integer number (7740366865).

Almost surely, 2^15480733729 is an apocalyptic number.

It is an amenable number.

15480733729 is a deficient number, since it is larger than the sum of its proper divisors (1).

15480733729 is an equidigital number, since it uses as much as digits as its factorization.

15480733729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 15480733729 in words is "fifteen billion, four hundred eighty million, seven hundred thirty-three thousand, seven hundred twenty-nine".