86891429671 has 2 divisors, whose sum is σ = 86891429672. Its totient is φ = 86891429670.

The previous prime is 86891429609. The next prime is 86891429699. The reversal of 86891429671 is 17692419868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86891429671 - 2¹⁵ = 86891396903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86891421671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43445714835 + 43445714836.

It is an arithmetic number, because the mean of its divisors is an integer number (43445714836).

Almost surely, 2^86891429671 is an apocalyptic number.

86891429671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86891429671 is an equidigital number, since it uses as much as digits as its factorization.

86891429671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 61.

The spelling of 86891429671 in words is "eighty-six billion, eight hundred ninety-one million, four hundred twenty-nine thousand, six hundred seventy-one".