495129810277 has 4 divisors (see below), whose sum is σ = 495253938060. Its totient is φ = 495005682496.

The previous prime is 495129810251. The next prime is 495129810313. The reversal of 495129810277 is 772018921594.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87787171521 + 407342638756 = 296289^2 + 638234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495129810277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495129840277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62057908 + ... + 62065885.

It is an arithmetic number, because the mean of its divisors is an integer number (123813484515).

Almost surely, 2^495129810277 is an apocalyptic number.

It is an amenable number.

495129810277 is a deficient number, since it is larger than the sum of its proper divisors (124127783).

495129810277 is a wasteful number, since it uses less digits than its factorization.

495129810277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124127782.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 495129810277 in words is "four hundred ninety-five billion, one hundred twenty-nine million, eight hundred ten thousand, two hundred seventy-seven".