820845924514 has 16 divisors (see below), whose sum is σ = 1535088482496. Its totient is φ = 319810100400.

The previous prime is 820845924499. The next prime is 820845924517. The reversal of 820845924514 is 415429548028.

It is a super-2 number, since 2×820845924514² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (820845924517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2665084017 + ... + 2665084324.

It is an arithmetic number, because the mean of its divisors is an integer number (95943030156).

Almost surely, 2^820845924514 is an apocalyptic number.

820845924514 is a deficient number, since it is larger than the sum of its proper divisors (714242557982).

820845924514 is a wasteful number, since it uses less digits than its factorization.

820845924514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330168361.

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 820845924514 in words is "eight hundred twenty billion, eight hundred forty-five million, nine hundred twenty-four thousand, five hundred fourteen".