498280578681 has 4 divisors (see below), whose sum is σ = 664374104912. Its totient is φ = 332187052452.

The previous prime is 498280578673. The next prime is 498280578703. The reversal of 498280578681 is 186875082894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 498280578681 - 2³ = 498280578673 is a prime.

It is a super-2 number, since 2×498280578681² (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 (498280578611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83046763111 + ... + 83046763116.

It is an arithmetic number, because the mean of its divisors is an integer number (166093526228).

Almost surely, 2^498280578681 is an apocalyptic number.

It is an amenable number.

498280578681 is a deficient number, since it is larger than the sum of its proper divisors (166093526231).

498280578681 is a wasteful number, since it uses less digits than its factorization.

498280578681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166093526230.

The product of its (nonzero) digits is 61931520, while the sum is 66.

The spelling of 498280578681 in words is "four hundred ninety-eight billion, two hundred eighty million, five hundred seventy-eight thousand, six hundred eighty-one".