498618816894 has 96 divisors (see below), whose sum is σ = 1243073520000. Its totient is φ = 142856758080.

The previous prime is 498618816809. The next prime is 498618816929.

498618816894 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1744432 + ... + 2010044.

It is an arithmetic number, because the mean of its divisors is an integer number (12948682500).

Almost surely, 2^498618816894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498618816894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621536760000).

498618816894 is an abundant number, since it is smaller than the sum of its proper divisors (744454703106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

498618816894 is a wasteful number, since it uses less digits than its factorization.

498618816894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266150 (or 266147 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 72.

The spelling of 498618816894 in words is "four hundred ninety-eight billion, six hundred eighteen million, eight hundred sixteen thousand, eight hundred ninety-four".