497677781903 has 2 divisors, whose sum is σ = 497677781904. Its totient is φ = 497677781902.

The previous prime is 497677781879. The next prime is 497677781957. The reversal of 497677781903 is 309187776794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497677781903 - 2¹⁰ = 497677780879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497677781963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248838890951 + 248838890952.

It is an arithmetic number, because the mean of its divisors is an integer number (248838890952).

Almost surely, 2^497677781903 is an apocalyptic number.

497677781903 is a deficient number, since it is larger than the sum of its proper divisors (1).

497677781903 is an equidigital number, since it uses as much as digits as its factorization.

497677781903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112021056, while the sum is 68.

The spelling of 497677781903 in words is "four hundred ninety-seven billion, six hundred seventy-seven million, seven hundred eighty-one thousand, nine hundred three".