15435324493 has 2 divisors, whose sum is σ = 15435324494. Its totient is φ = 15435324492.

The previous prime is 15435324479. The next prime is 15435324551. The reversal of 15435324493 is 39442353451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15400313604 + 35010889 = 124098^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 15435324493 - 2²⁵ = 15401770061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15435324413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7717662246 + 7717662247.

It is an arithmetic number, because the mean of its divisors is an integer number (7717662247).

Almost surely, 2^15435324493 is an apocalyptic number.

It is an amenable number.

15435324493 is a deficient number, since it is larger than the sum of its proper divisors (1).

15435324493 is an equidigital number, since it uses as much as digits as its factorization.

15435324493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 43.

The spelling of 15435324493 in words is "fifteen billion, four hundred thirty-five million, three hundred twenty-four thousand, four hundred ninety-three".