89432311291 has 2 divisors, whose sum is σ = 89432311292. Its totient is φ = 89432311290.

The previous prime is 89432311289. The next prime is 89432311361. The reversal of 89432311291 is 19211323498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89432311291 - 2¹ = 89432311289 is a prime.

Together with 89432311289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89432341291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44716155645 + 44716155646.

It is an arithmetic number, because the mean of its divisors is an integer number (44716155646).

Almost surely, 2^89432311291 is an apocalyptic number.

89432311291 is a deficient number, since it is larger than the sum of its proper divisors (1).

89432311291 is an equidigital number, since it uses as much as digits as its factorization.

89432311291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The spelling of 89432311291 in words is "eighty-nine billion, four hundred thirty-two million, three hundred eleven thousand, two hundred ninety-one".