820606826846 has 8 divisors (see below), whose sum is σ = 1231353500400. Its totient is φ = 410155660048.

The previous prime is 820606826833. The next prime is 820606826863. The reversal of 820606826846 is 648628606028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×820606826846² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 820606826791 and 820606826800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73869746 + ... + 73880853.

It is an arithmetic number, because the mean of its divisors is an integer number (153919187550).

Almost surely, 2^820606826846 is an apocalyptic number.

820606826846 is a deficient number, since it is larger than the sum of its proper divisors (410746673554).

820606826846 is a wasteful number, since it uses less digits than its factorization.

820606826846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147753378.

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 820606826846 in words is "eight hundred twenty billion, six hundred six million, eight hundred twenty-six thousand, eight hundred forty-six".