87743619559 has 2 divisors, whose sum is σ = 87743619560. Its totient is φ = 87743619558.

The previous prime is 87743619553. The next prime is 87743619641. The reversal of 87743619559 is 95591634778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87743619559 - 2⁵ = 87743619527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87743619559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87743619553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43871809779 + 43871809780.

It is an arithmetic number, because the mean of its divisors is an integer number (43871809780).

Almost surely, 2^87743619559 is an apocalyptic number.

87743619559 is a deficient number, since it is larger than the sum of its proper divisors (1).

87743619559 is an equidigital number, since it uses as much as digits as its factorization.

87743619559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57153600, while the sum is 64.

The spelling of 87743619559 in words is "eighty-seven billion, seven hundred forty-three million, six hundred nineteen thousand, five hundred fifty-nine".