147427264068989 has 2 divisors, whose sum is σ = 147427264068990. Its totient is φ = 147427264068988.

The previous prime is 147427264068967. The next prime is 147427264068991. The reversal of 147427264068989 is 989860462724741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136584402946489 + 10842861122500 = 11686933^2 + 3292850^2 .

It is an emirp because it is prime and its reverse (989860462724741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147427264068989 - 2²⁰ = 147427263020413 is a prime.

It is a Sophie Germain prime.

Together with 147427264068991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147427264068949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73713632034494 + 73713632034495.

It is an arithmetic number, because the mean of its divisors is an integer number (73713632034495).

Almost surely, 2^{147427264068989} is an apocalyptic number.

It is an amenable number.

147427264068989 is a deficient number, since it is larger than the sum of its proper divisors (1).

147427264068989 is an equidigital number, since it uses as much as digits as its factorization.

147427264068989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2341011456, while the sum is 77.

The spelling of 147427264068989 in words is "one hundred forty-seven trillion, four hundred twenty-seven billion, two hundred sixty-four million, sixty-eight thousand, nine hundred eighty-nine".