15461370643 has 2 divisors, whose sum is σ = 15461370644. Its totient is φ = 15461370642.

The previous prime is 15461370601. The next prime is 15461370649. The reversal of 15461370643 is 34607316451.

15461370643 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 is an emirp because it is prime and its reverse (34607316451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15461370643 - 2²⁹ = 14924499731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15461370596 and 15461370605.

It is not a weakly prime, because it can be changed into another prime (15461370649) 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, 7730685321 + 7730685322.

It is an arithmetic number, because the mean of its divisors is an integer number (7730685322).

Almost surely, 2^15461370643 is an apocalyptic number.

15461370643 is a deficient number, since it is larger than the sum of its proper divisors (1).

15461370643 is an equidigital number, since it uses as much as digits as its factorization.

15461370643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 15461370643 in words is "fifteen billion, four hundred sixty-one million, three hundred seventy thousand, six hundred forty-three".