821124068832 has 36 divisors (see below), whose sum is σ = 2335071571560. Its totient is φ = 273708022848.

The previous prime is 821124068819. The next prime is 821124068851. The reversal of 821124068832 is 238860421128.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1425562332 + ... + 1425562907.

It is an arithmetic number, because the mean of its divisors is an integer number (64863099210).

Almost surely, 2^821124068832 is an apocalyptic number.

It is an amenable number.

821124068832 is an abundant number, since it is smaller than the sum of its proper divisors (1513947502728).

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

821124068832 is a wasteful number, since it uses less digits than its factorization.

821124068832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851125255 (or 2851125244 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 821124068832 in words is "eight hundred twenty-one billion, one hundred twenty-four million, sixty-eight thousand, eight hundred thirty-two".