89345738919911 has 2 divisors, whose sum is σ = 89345738919912. Its totient is φ = 89345738919910.

The previous prime is 89345738919791. The next prime is 89345738919947. The reversal of 89345738919911 is 11991983754398.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89345738919911 is a prime.

It is a super-2 number, since 2×89345738919911² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89345738919511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44672869459955 + 44672869459956.

It is an arithmetic number, because the mean of its divisors is an integer number (44672869459956).

Almost surely, 2^{89345738919911} is an apocalyptic number.

89345738919911 is a deficient number, since it is larger than the sum of its proper divisors (1).

89345738919911 is an equidigital number, since it uses as much as digits as its factorization.

89345738919911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529079040, while the sum is 77.

The spelling of 89345738919911 in words is "eighty-nine trillion, three hundred forty-five billion, seven hundred thirty-eight million, nine hundred nineteen thousand, nine hundred eleven".