497030799021 has 4 divisors (see below), whose sum is σ = 662707732032. Its totient is φ = 331353866012.

The previous prime is 497030798993. The next prime is 497030799037. The reversal of 497030799021 is 120997030794.

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 a cyclic number.

It is not a de Polignac number, because 497030799021 - 2⁷ = 497030798893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497030799721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82838466501 + ... + 82838466506.

It is an arithmetic number, because the mean of its divisors is an integer number (165676933008).

Almost surely, 2^497030799021 is an apocalyptic number.

It is an amenable number.

497030799021 is a deficient number, since it is larger than the sum of its proper divisors (165676933011).

497030799021 is a wasteful number, since it uses less digits than its factorization.

497030799021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165676933010.

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 497030799021 in words is "four hundred ninety-seven billion, thirty million, seven hundred ninety-nine thousand, twenty-one".