89936426429 has 2 divisors, whose sum is σ = 89936426430. Its totient is φ = 89936426428.

The previous prime is 89936426347. The next prime is 89936426431. The reversal of 89936426429 is 92462463998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58902319204 + 31034107225 = 242698^2 + 176165^2 .

It is a cyclic number.

It is not a de Polignac number, because 89936426429 - 2¹² = 89936422333 is a prime.

Together with 89936426431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89936426479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44968213214 + 44968213215.

It is an arithmetic number, because the mean of its divisors is an integer number (44968213215).

Almost surely, 2^89936426429 is an apocalyptic number.

It is an amenable number.

89936426429 is a deficient number, since it is larger than the sum of its proper divisors (1).

89936426429 is an equidigital number, since it uses as much as digits as its factorization.

89936426429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 62.

The spelling of 89936426429 in words is "eighty-nine billion, nine hundred thirty-six million, four hundred twenty-six thousand, four hundred twenty-nine".