89390865313 has 2 divisors, whose sum is σ = 89390865314. Its totient is φ = 89390865312.

The previous prime is 89390865301. The next prime is 89390865401. The reversal of 89390865313 is 31356809398.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64509904144 + 24880961169 = 253988^2 + 157737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89390865313 is a prime.

It is not a weakly prime, because it can be changed into another prime (89390869313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44695432656 + 44695432657.

It is an arithmetic number, because the mean of its divisors is an integer number (44695432657).

Almost surely, 2^89390865313 is an apocalyptic number.

It is an amenable number.

89390865313 is a deficient number, since it is larger than the sum of its proper divisors (1).

89390865313 is an equidigital number, since it uses as much as digits as its factorization.

89390865313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 89390865313 in words is "eighty-nine billion, three hundred ninety million, eight hundred sixty-five thousand, three hundred thirteen".