87148665847 has 2 divisors, whose sum is σ = 87148665848. Its totient is φ = 87148665846.

The previous prime is 87148665827. The next prime is 87148665883. The reversal of 87148665847 is 74856684178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87148665847 - 2¹⁵ = 87148633079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87148665827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43574332923 + 43574332924.

It is an arithmetic number, because the mean of its divisors is an integer number (43574332924).

Almost surely, 2^87148665847 is an apocalyptic number.

87148665847 is a deficient number, since it is larger than the sum of its proper divisors (1).

87148665847 is an equidigital number, since it uses as much as digits as its factorization.

87148665847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72253440, while the sum is 64.

The spelling of 87148665847 in words is "eighty-seven billion, one hundred forty-eight million, six hundred sixty-five thousand, eight hundred forty-seven".