489955803767 has 2 divisors, whose sum is σ = 489955803768. Its totient is φ = 489955803766.

The previous prime is 489955803703. The next prime is 489955803791. The reversal of 489955803767 is 767308559984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489955803767 - 2⁶ = 489955803703 is a prime.

It is a super-2 number, since 2×489955803767² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489955803767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489955808767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244977901883 + 244977901884.

It is an arithmetic number, because the mean of its divisors is an integer number (244977901884).

Almost surely, 2^489955803767 is an apocalyptic number.

489955803767 is a deficient number, since it is larger than the sum of its proper divisors (1).

489955803767 is an equidigital number, since it uses as much as digits as its factorization.

489955803767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 457228800, while the sum is 71.

The spelling of 489955803767 in words is "four hundred eighty-nine billion, nine hundred fifty-five million, eight hundred three thousand, seven hundred sixty-seven".