495017398971 has 6 divisors (see below), whose sum is σ = 715025131860. Its totient is φ = 330011599308.

The previous prime is 495017398957. The next prime is 495017399057. The reversal of 495017398971 is 179893710594.

495017398971 is a `hidden beast` number, since 4 + 9 + 501 + 7 + 39 + 8 + 97 + 1 = 666.

It is not a de Polignac number, because 495017398971 - 2¹⁸ = 495017136827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 495017398899 and 495017398908.

It is not an unprimeable number, because it can be changed into a prime (495017398471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27500966601 + ... + 27500966618.

It is an arithmetic number, because the mean of its divisors is an integer number (119170855310).

Almost surely, 2^495017398971 is an apocalyptic number.

495017398971 is a deficient number, since it is larger than the sum of its proper divisors (220007732889).

495017398971 is a wasteful number, since it uses less digits than its factorization.

495017398971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55001933225 (or 55001933222 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

The spelling of 495017398971 in words is "four hundred ninety-five billion, seventeen million, three hundred ninety-eight thousand, nine hundred seventy-one".