490547552881 has 3 divisors (see below), whose sum is σ = 490548253273. Its totient is φ = 490546852490.

The previous prime is 490547552867. The next prime is 490547552917. The reversal of 490547552881 is 188255745094.

The square root of 490547552881 is 700391.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 490547552881 - 2⁵ = 490547552849 is a prime.

It is a super-2 number, since 2×490547552881² (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 (490547552801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 350196 + ... + 1050586.

Almost surely, 2^490547552881 is an apocalyptic number.

490547552881 is the 700391-st square number.

490547552881 is the 350196-th centered octagonal number.

It is an amenable number.

490547552881 is a deficient number, since it is larger than the sum of its proper divisors (700392).

490547552881 is an frugal number, since it uses more digits than its factorization.

490547552881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400782 (or 700391 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 58.

The spelling of 490547552881 in words is "four hundred ninety billion, five hundred forty-seven million, five hundred fifty-two thousand, eight hundred eighty-one".