834884693817140 has 12 divisors (see below), whose sum is σ = 1753257857016036. Its totient is φ = 333953877526848.

The previous prime is 834884693817121. The next prime is 834884693817149. The reversal of 834884693817140 is 41718396488438.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 383154473246224 + 451730220570916 = 19574332^2 + 21253946^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834884693817149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20872117345409 + ... + 20872117345448.

It is an arithmetic number, because the mean of its divisors is an integer number (146104821418003).

Almost surely, 2^{834884693817140} is an apocalyptic number.

It is an amenable number.

834884693817140 is an abundant number, since it is smaller than the sum of its proper divisors (918373163198896).

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

834884693817140 is a wasteful number, since it uses less digits than its factorization.

834884693817140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41744234690866 (or 41744234690864 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 74.

The spelling of 834884693817140 in words is "eight hundred thirty-four trillion, eight hundred eighty-four billion, six hundred ninety-three million, eight hundred seventeen thousand, one hundred forty".