86870093977 has 2 divisors, whose sum is σ = 86870093978. Its totient is φ = 86870093976.

The previous prime is 86870093969. The next prime is 86870094019. The reversal of 86870093977 is 77939007868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78223139856 + 8646954121 = 279684^2 + 92989^2 .

It is a cyclic number.

It is not a de Polignac number, because 86870093977 - 2³ = 86870093969 is a prime.

It is not a weakly prime, because it can be changed into another prime (86870093927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43435046988 + 43435046989.

It is an arithmetic number, because the mean of its divisors is an integer number (43435046989).

Almost surely, 2^86870093977 is an apocalyptic number.

It is an amenable number.

86870093977 is a deficient number, since it is larger than the sum of its proper divisors (1).

86870093977 is an equidigital number, since it uses as much as digits as its factorization.

86870093977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 64.

The spelling of 86870093977 in words is "eighty-six billion, eight hundred seventy million, ninety-three thousand, nine hundred seventy-seven".