820834462072 has 32 divisors (see below), whose sum is σ = 1542596659200. Its totient is φ = 409476439264.

The previous prime is 820834462069. The next prime is 820834462099. The reversal of 820834462072 is 270264438028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6056829 + ... + 6190867.

It is an arithmetic number, because the mean of its divisors is an integer number (48206145600).

Almost surely, 2^820834462072 is an apocalyptic number.

It is an amenable number.

820834462072 is a deficient number, since it is larger than the sum of its proper divisors (721762197128).

820834462072 is a wasteful number, since it uses less digits than its factorization.

820834462072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135795 (or 135791 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 820834462072 in words is "eight hundred twenty billion, eight hundred thirty-four million, four hundred sixty-two thousand, seventy-two".