15930853481 has 2 divisors, whose sum is σ = 15930853482. Its totient is φ = 15930853480.

The previous prime is 15930853439. The next prime is 15930853483. The reversal of 15930853481 is 18435803951.

15930853481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9051809881 + 6879043600 = 95141^2 + 82940^2 .

It is a cyclic number.

It is not a de Polignac number, because 15930853481 - 2¹⁸ = 15930591337 is a prime.

It is a super-2 number, since 2×15930853481² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 15930853483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15930853483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7965426740 + 7965426741.

It is an arithmetic number, because the mean of its divisors is an integer number (7965426741).

Almost surely, 2^15930853481 is an apocalyptic number.

It is an amenable number.

15930853481 is a deficient number, since it is larger than the sum of its proper divisors (1).

15930853481 is an equidigital number, since it uses as much as digits as its factorization.

15930853481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 15930853481 in words is "fifteen billion, nine hundred thirty million, eight hundred fifty-three thousand, four hundred eighty-one".