133674320687 has 2 divisors, whose sum is σ = 133674320688. Its totient is φ = 133674320686.

The previous prime is 133674320683. The next prime is 133674320693. The reversal of 133674320687 is 786023476331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133674320687 - 2² = 133674320683 is a prime.

It is a super-2 number, since 2×133674320687² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133674320683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66837160343 + 66837160344.

It is an arithmetic number, because the mean of its divisors is an integer number (66837160344).

Almost surely, 2^133674320687 is an apocalyptic number.

133674320687 is a deficient number, since it is larger than the sum of its proper divisors (1).

133674320687 is an equidigital number, since it uses as much as digits as its factorization.

133674320687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 133674320687 in words is "one hundred thirty-three billion, six hundred seventy-four million, three hundred twenty thousand, six hundred eighty-seven".