15582963481 has 2 divisors, whose sum is σ = 15582963482. Its totient is φ = 15582963480.

The previous prime is 15582963463. The next prime is 15582963491. The reversal of 15582963481 is 18436928551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12503712400 + 3079251081 = 111820^2 + 55491^2 .

It is a cyclic number.

It is not a de Polignac number, because 15582963481 - 2¹⁹ = 15582439193 is a prime.

It is a super-2 number, since 2×15582963481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15582963491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7791481740 + 7791481741.

It is an arithmetic number, because the mean of its divisors is an integer number (7791481741).

Almost surely, 2^15582963481 is an apocalyptic number.

It is an amenable number.

15582963481 is a deficient number, since it is larger than the sum of its proper divisors (1).

15582963481 is an equidigital number, since it uses as much as digits as its factorization.

15582963481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 52.

The spelling of 15582963481 in words is "fifteen billion, five hundred eighty-two million, nine hundred sixty-three thousand, four hundred eighty-one".