15487746643 has 2 divisors, whose sum is σ = 15487746644. Its totient is φ = 15487746642.

The previous prime is 15487746619. The next prime is 15487746653. The reversal of 15487746643 is 34664778451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15487746643 - 2⁵ = 15487746611 is a prime.

It is not a weakly prime, because it can be changed into another prime (15487746613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7743873321 + 7743873322.

It is an arithmetic number, because the mean of its divisors is an integer number (7743873322).

Almost surely, 2^15487746643 is an apocalyptic number.

15487746643 is a deficient number, since it is larger than the sum of its proper divisors (1).

15487746643 is an equidigital number, since it uses as much as digits as its factorization.

15487746643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 55.

The spelling of 15487746643 in words is "fifteen billion, four hundred eighty-seven million, seven hundred forty-six thousand, six hundred forty-three".