133554677797 has 2 divisors, whose sum is σ = 133554677798. Its totient is φ = 133554677796.

The previous prime is 133554677747. The next prime is 133554677869. The reversal of 133554677797 is 797776455331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69144806116 + 64409871681 = 262954^2 + 253791^2 .

It is an emirp because it is prime and its reverse (797776455331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133554677797 is a prime.

It is a super-2 number, since 2×133554677797² (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 (133554677717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66777338898 + 66777338899.

It is an arithmetic number, because the mean of its divisors is an integer number (66777338899).

Almost surely, 2^133554677797 is an apocalyptic number.

It is an amenable number.

133554677797 is a deficient number, since it is larger than the sum of its proper divisors (1).

133554677797 is an equidigital number, since it uses as much as digits as its factorization.

133554677797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116688600, while the sum is 64.

The spelling of 133554677797 in words is "one hundred thirty-three billion, five hundred fifty-four million, six hundred seventy-seven thousand, seven hundred ninety-seven".