497373556681 has 8 divisors (see below), whose sum is σ = 524829939840. Its totient is φ = 470403127392.

The previous prime is 497373556651. The next prime is 497373556717. The reversal of 497373556681 is 186655373794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 497373556681 - 2⁷ = 497373556553 is a prime.

It is a super-2 number, since 2×497373556681² (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 (497373556621) 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 7 ways as a sum of consecutive naturals, for example, 121486365 + ... + 121490458.

It is an arithmetic number, because the mean of its divisors is an integer number (65603742480).

Almost surely, 2^497373556681 is an apocalyptic number.

It is an amenable number.

497373556681 is a deficient number, since it is larger than the sum of its proper divisors (27456383159).

497373556681 is a wasteful number, since it uses less digits than its factorization.

497373556681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242976935.

The product of its digits is 114307200, while the sum is 64.

The spelling of 497373556681 in words is "four hundred ninety-seven billion, three hundred seventy-three million, five hundred fifty-six thousand, six hundred eighty-one".