89175421871 has 2 divisors, whose sum is σ = 89175421872. Its totient is φ = 89175421870.

The previous prime is 89175421823. The next prime is 89175421879. The reversal of 89175421871 is 17812457198.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89175421871 - 2³⁰ = 88101680047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89175421879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44587710935 + 44587710936.

It is an arithmetic number, because the mean of its divisors is an integer number (44587710936).

Almost surely, 2^89175421871 is an apocalyptic number.

89175421871 is a deficient number, since it is larger than the sum of its proper divisors (1).

89175421871 is an equidigital number, since it uses as much as digits as its factorization.

89175421871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 53.

The spelling of 89175421871 in words is "eighty-nine billion, one hundred seventy-five million, four hundred twenty-one thousand, eight hundred seventy-one".