834517389450 has 96 divisors (see below), whose sum is σ = 2118240691776. Its totient is φ = 217310607360.

The previous prime is 834517389421. The next prime is 834517389499. The reversal of 834517389450 is 54983715438.

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, 32062842 + ... + 32088858.

It is an arithmetic number, because the mean of its divisors is an integer number (22065007206).

Almost surely, 2^834517389450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 834517389450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059120345888).

834517389450 is an abundant number, since it is smaller than the sum of its proper divisors (1283723302326).

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

834517389450 is a wasteful number, since it uses less digits than its factorization.

834517389450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31048 (or 31043 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 834517389450 in words is "eight hundred thirty-four billion, five hundred seventeen million, three hundred eighty-nine thousand, four hundred fifty".