835138643094 has 96 divisors (see below), whose sum is σ = 2185911936000. Its totient is φ = 225106584192.

The previous prime is 835138643083. The next prime is 835138643149. The reversal of 835138643094 is 490346831538.

835138643094 is a `hidden beast` number, since 8 + 3 + 513 + 8 + 6 + 4 + 30 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 835138643094.

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, 157639 + ... + 1301970.

It is an arithmetic number, because the mean of its divisors is an integer number (22769916000).

Almost surely, 2^835138643094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 835138643094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092955968000).

835138643094 is an abundant number, since it is smaller than the sum of its proper divisors (1350773292906).

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

835138643094 is a wasteful number, since it uses less digits than its factorization.

835138643094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459882 (or 1459879 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 835138643094 in words is "eight hundred thirty-five billion, one hundred thirty-eight million, six hundred forty-three thousand, ninety-four".