87148665827 has 2 divisors, whose sum is σ = 87148665828. Its totient is φ = 87148665826.

The previous prime is 87148665811. The next prime is 87148665847. The reversal of 87148665827 is 72856684178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87148665827 - 2⁴ = 87148665811 is a prime.

It is a super-2 number, since 2×87148665827² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87148665827.

It is not a weakly prime, because it can be changed into another prime (87148665847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43574332913 + 43574332914.

It is an arithmetic number, because the mean of its divisors is an integer number (43574332914).

Almost surely, 2^87148665827 is an apocalyptic number.

87148665827 is a deficient number, since it is larger than the sum of its proper divisors (1).

87148665827 is an equidigital number, since it uses as much as digits as its factorization.

87148665827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36126720, while the sum is 62.

The spelling of 87148665827 in words is "eighty-seven billion, one hundred forty-eight million, six hundred sixty-five thousand, eight hundred twenty-seven".