495679152081 has 4 divisors (see below), whose sum is σ = 660905536112. Its totient is φ = 330452768052.

The previous prime is 495679152071. The next prime is 495679152127. The reversal of 495679152081 is 180251976594.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 495679152081 - 2¹¹ = 495679150033 is a prime.

It is a super-2 number, since 2×495679152081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495679152061) 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, 82613192011 + ... + 82613192016.

It is an arithmetic number, because the mean of its divisors is an integer number (165226384028).

Almost surely, 2^495679152081 is an apocalyptic number.

It is an amenable number.

495679152081 is a deficient number, since it is larger than the sum of its proper divisors (165226384031).

495679152081 is a wasteful number, since it uses less digits than its factorization.

495679152081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165226384030.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 495679152081 in words is "four hundred ninety-five billion, six hundred seventy-nine million, one hundred fifty-two thousand, eighty-one".