469136821896 has 80 divisors (see below), whose sum is σ = 1315029856140. Its totient is φ = 156258460800.

The previous prime is 469136821873. The next prime is 469136821903. The reversal of 469136821896 is 698128631964.

469136821896 is a `hidden beast` number, since 4 + 6 + 91 + 368 + 2 + 189 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 464832149796 + 4304672100 = 681786^2 + 65610^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 564810 + ... + 1121286.

Almost surely, 2^469136821896 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 469136821896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657514928070).

469136821896 is an abundant number, since it is smaller than the sum of its proper divisors (845893034244).

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

469136821896 is a wasteful number, since it uses less digits than its factorization.

469136821896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557796 (or 557783 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The spelling of 469136821896 in words is "four hundred sixty-nine billion, one hundred thirty-six million, eight hundred twenty-one thousand, eight hundred ninety-six".