498549654381 has 4 divisors (see below), whose sum is σ = 664732872512. Its totient is φ = 332366436252.

The previous prime is 498549654377. The next prime is 498549654389. The reversal of 498549654381 is 183456945894.

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 498549654381 - 2² = 498549654377 is a prime.

It is a super-2 number, since 2×498549654381² (a number of 24 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498549654389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83091609061 + ... + 83091609066.

It is an arithmetic number, because the mean of its divisors is an integer number (166183218128).

Almost surely, 2^498549654381 is an apocalyptic number.

It is an amenable number.

498549654381 is a deficient number, since it is larger than the sum of its proper divisors (166183218131).

498549654381 is a wasteful number, since it uses less digits than its factorization.

498549654381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166183218130.

The product of its digits is 149299200, while the sum is 66.

The spelling of 498549654381 in words is "four hundred ninety-eight billion, five hundred forty-nine million, six hundred fifty-four thousand, three hundred eighty-one".