836141990464 has 63 divisors (see below), whose sum is σ = 1823945464243. Its totient is φ = 380027964800.

The previous prime is 836141990459. The next prime is 836141990471. The reversal of 836141990464 is 464099141638.

The square root of 836141990464 is 914408.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 80462709 + ... + 80473099.

Almost surely, 2^836141990464 is an apocalyptic number.

836141990464 is the 914408-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 836141990464

836141990464 is an abundant number, since it is smaller than the sum of its proper divisors (987803473779).

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

836141990464 is an frugal number, since it uses more digits than its factorization.

836141990464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20816 (or 10404 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 836141990464 in words is "eight hundred thirty-six billion, one hundred forty-one million, nine hundred ninety thousand, four hundred sixty-four".