133870763464873 has 2 divisors, whose sum is σ = 133870763464874. Its totient is φ = 133870763464872.

The previous prime is 133870763464787. The next prime is 133870763464877. The reversal of 133870763464873 is 378464367078331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98057684198464 + 35813079266409 = 9902408^2 + 5984403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133870763464873 is a prime.

It is a super-2 number, since 2×133870763464873² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133870763464877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66935381732436 + 66935381732437.

It is an arithmetic number, because the mean of its divisors is an integer number (66935381732437).

Almost surely, 2^{133870763464873} is an apocalyptic number.

It is an amenable number.

133870763464873 is a deficient number, since it is larger than the sum of its proper divisors (1).

133870763464873 is an equidigital number, since it uses as much as digits as its factorization.

133870763464873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024192512, while the sum is 70.

The spelling of 133870763464873 in words is "one hundred thirty-three trillion, eight hundred seventy billion, seven hundred sixty-three million, four hundred sixty-four thousand, eight hundred seventy-three".