133870763464777 has 4 divisors (see below), whose sum is σ = 133870796987796. Its totient is φ = 133870729941760.

The previous prime is 133870763464771. The next prime is 133870763464783. The reversal of 133870763464777 is 777464367078331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (133870763464771) and next prime (133870763464783).

It can be written as a sum of positive squares in 2 ways, for example, as 72628932552121 + 61241830912656 = 8522261^2 + 7825716^2 .

It is a cyclic number.

It is not a de Polignac number, because 133870763464777 - 2³ = 133870763464769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133870763464771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9810568 + ... + 19078489.

It is an arithmetic number, because the mean of its divisors is an integer number (33467699246949).

Almost surely, 2^{133870763464777} is an apocalyptic number.

It is an amenable number.

133870763464777 is a deficient number, since it is larger than the sum of its proper divisors (33523019).

133870763464777 is an equidigital number, since it uses as much as digits as its factorization.

133870763464777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33523018.

The product of its (nonzero) digits is 2091059712, while the sum is 73.

The spelling of 133870763464777 in words is "one hundred thirty-three trillion, eight hundred seventy billion, seven hundred sixty-three million, four hundred sixty-four thousand, seven hundred seventy-seven".