133494837779 has 2 divisors, whose sum is σ = 133494837780. Its totient is φ = 133494837778.

The previous prime is 133494837709. The next prime is 133494837781. The reversal of 133494837779 is 977738494331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133494837779 - 2³⁶ = 64775361043 is a prime.

Together with 133494837781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133494837709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66747418889 + 66747418890.

It is an arithmetic number, because the mean of its divisors is an integer number (66747418890).

Almost surely, 2^133494837779 is an apocalyptic number.

133494837779 is a deficient number, since it is larger than the sum of its proper divisors (1).

133494837779 is an equidigital number, since it uses as much as digits as its factorization.

133494837779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96018048, while the sum is 65.

The spelling of 133494837779 in words is "one hundred thirty-three billion, four hundred ninety-four million, eight hundred thirty-seven thousand, seven hundred seventy-nine".