490589974687 has 2 divisors, whose sum is σ = 490589974688. Its totient is φ = 490589974686.

The previous prime is 490589974681. The next prime is 490589974727. The reversal of 490589974687 is 786479985094.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490589974687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490589974681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245294987343 + 245294987344.

It is an arithmetic number, because the mean of its divisors is an integer number (245294987344).

Almost surely, 2^490589974687 is an apocalyptic number.

490589974687 is a deficient number, since it is larger than the sum of its proper divisors (1).

490589974687 is an equidigital number, since it uses as much as digits as its factorization.

490589974687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1097349120, while the sum is 76.

The spelling of 490589974687 in words is "four hundred ninety billion, five hundred eighty-nine million, nine hundred seventy-four thousand, six hundred eighty-seven".