133374428689 has 2 divisors, whose sum is σ = 133374428690. Its totient is φ = 133374428688.

The previous prime is 133374428633. The next prime is 133374428713. The reversal of 133374428689 is 986824473331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121703299600 + 11671129089 = 348860^2 + 108033^2 .

It is a cyclic number.

It is not a de Polignac number, because 133374428689 - 2¹³ = 133374420497 is a prime.

It is not a weakly prime, because it can be changed into another prime (133374428189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66687214344 + 66687214345.

It is an arithmetic number, because the mean of its divisors is an integer number (66687214345).

Almost surely, 2^133374428689 is an apocalyptic number.

It is an amenable number.

133374428689 is a deficient number, since it is larger than the sum of its proper divisors (1).

133374428689 is an equidigital number, since it uses as much as digits as its factorization.

133374428689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 58.

The spelling of 133374428689 in words is "one hundred thirty-three billion, three hundred seventy-four million, four hundred twenty-eight thousand, six hundred eighty-nine".