490782912481 has 9 divisors (see below), whose sum is σ = 491961975123. Its totient is φ = 489606673920.

The previous prime is 490782912449. The next prime is 490782912493. The reversal of 490782912481 is 184219287094.

The square root of 490782912481 is 700559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 192011352481 + 298771560000 = 438191^2 + 546600^2 .

It is not a de Polignac number, because 490782912481 - 2⁵ = 490782912449 is a prime.

It is a super-2 number, since 2×490782912481² (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 (490782952481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 538729416 + ... + 538730326.

Almost surely, 2^490782912481 is an apocalyptic number.

490782912481 is the 700559-th square number.

490782912481 is the 350280-th centered octagonal number.

It is an amenable number.

490782912481 is a deficient number, since it is larger than the sum of its proper divisors (1179062642).

490782912481 is an frugal number, since it uses more digits than its factorization.

490782912481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 490782912481 in words is "four hundred ninety billion, seven hundred eighty-two million, nine hundred twelve thousand, four hundred eighty-one".