86870094491 has 2 divisors, whose sum is σ = 86870094492. Its totient is φ = 86870094490.

The previous prime is 86870094473. The next prime is 86870094599. The reversal of 86870094491 is 19449007868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86870094491 - 2¹⁴ = 86870078107 is a prime.

It is not a weakly prime, because it can be changed into another prime (86870094991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43435047245 + 43435047246.

It is an arithmetic number, because the mean of its divisors is an integer number (43435047246).

Almost surely, 2^86870094491 is an apocalyptic number.

86870094491 is a deficient number, since it is larger than the sum of its proper divisors (1).

86870094491 is an equidigital number, since it uses as much as digits as its factorization.

86870094491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 86870094491 in words is "eighty-six billion, eight hundred seventy million, ninety-four thousand, four hundred ninety-one".