87018750647 has 2 divisors, whose sum is σ = 87018750648. Its totient is φ = 87018750646.

The previous prime is 87018750583. The next prime is 87018750659. The reversal of 87018750647 is 74605781078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87018750647 - 2⁶ = 87018750583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87018740647) 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, 43509375323 + 43509375324.

It is an arithmetic number, because the mean of its divisors is an integer number (43509375324).

Almost surely, 2^87018750647 is an apocalyptic number.

87018750647 is a deficient number, since it is larger than the sum of its proper divisors (1).

87018750647 is an equidigital number, since it uses as much as digits as its factorization.

87018750647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The spelling of 87018750647 in words is "eighty-seven billion, eighteen million, seven hundred fifty thousand, six hundred forty-seven".