834038905872 has 20 divisors (see below), whose sum is σ = 2154600506960. Its totient is φ = 278012968608.

The previous prime is 834038905871. The next prime is 834038905891. The reversal of 834038905872 is 278509830438.

It is not an unprimeable number, because it can be changed into a prime (834038905871) 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, 8687905222 + ... + 8687905317.

It is an arithmetic number, because the mean of its divisors is an integer number (107730025348).

Almost surely, 2^834038905872 is an apocalyptic number.

It is an amenable number.

834038905872 is an abundant number, since it is smaller than the sum of its proper divisors (1320561601088).

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

834038905872 is a wasteful number, since it uses less digits than its factorization.

834038905872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17375810550 (or 17375810544 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 834038905872 in words is "eight hundred thirty-four billion, thirty-eight million, nine hundred five thousand, eight hundred seventy-two".