494589021696 has 1080 divisors, whose sum is σ = 1872020542392. Its totient is φ = 125179084800.

The previous prime is 494589021683. The next prime is 494589021697. The reversal of 494589021696 is 696120985494.

494589021696 is a `hidden beast` number, since 4 + 9 + 458 + 90 + 2 + 1 + 6 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494589021697) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1174795566 + ... + 1174795986.

Almost surely, 2^494589021696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494589021696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936010271196).

494589021696 is an abundant number, since it is smaller than the sum of its proper divisors (1377431520696).

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

494589021696 is a wasteful number, since it uses less digits than its factorization.

494589021696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 494589021696 in words is "four hundred ninety-four billion, five hundred eighty-nine million, twenty-one thousand, six hundred ninety-six".