87389756485247 has 2 divisors, whose sum is σ = 87389756485248. Its totient is φ = 87389756485246.

The previous prime is 87389756485169. The next prime is 87389756485253. The reversal of 87389756485247 is 74258465798378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87389756485247 - 2²⁸ = 87389488049791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87389756425247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43694878242623 + 43694878242624.

It is an arithmetic number, because the mean of its divisors is an integer number (43694878242624).

Almost surely, 2^{87389756485247} is an apocalyptic number.

87389756485247 is a deficient number, since it is larger than the sum of its proper divisors (1).

87389756485247 is an equidigital number, since it uses as much as digits as its factorization.

87389756485247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22759833600, while the sum is 83.

The spelling of 87389756485247 in words is "eighty-seven trillion, three hundred eighty-nine billion, seven hundred fifty-six million, four hundred eighty-five thousand, two hundred forty-seven".