133493691887351 has 2 divisors, whose sum is σ = 133493691887352. Its totient is φ = 133493691887350.

The previous prime is 133493691887251. The next prime is 133493691887441. The reversal of 133493691887351 is 153788196394331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133493691887351 - 2¹⁰ = 133493691886327 is a prime.

It is a super-3 number, since 3×133493691887351³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133493691887251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66746845943675 + 66746845943676.

It is an arithmetic number, because the mean of its divisors is an integer number (66746845943676).

Almost surely, 2^{133493691887351} is an apocalyptic number.

133493691887351 is a deficient number, since it is larger than the sum of its proper divisors (1).

133493691887351 is an equidigital number, since it uses as much as digits as its factorization.

133493691887351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 71.

The spelling of 133493691887351 in words is "one hundred thirty-three trillion, four hundred ninety-three billion, six hundred ninety-one million, eight hundred eighty-seven thousand, three hundred fifty-one".