86288415991 has 2 divisors, whose sum is σ = 86288415992. Its totient is φ = 86288415990.

The previous prime is 86288415977. The next prime is 86288416037. The reversal of 86288415991 is 19951488268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86288415991 - 2¹⁷ = 86288284919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86288415971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43144207995 + 43144207996.

It is an arithmetic number, because the mean of its divisors is an integer number (43144207996).

Almost surely, 2^86288415991 is an apocalyptic number.

86288415991 is a deficient number, since it is larger than the sum of its proper divisors (1).

86288415991 is an equidigital number, since it uses as much as digits as its factorization.

86288415991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 61.

The spelling of 86288415991 in words is "eighty-six billion, two hundred eighty-eight million, four hundred fifteen thousand, nine hundred ninety-one".