820486604460 has 24 divisors (see below), whose sum is σ = 2297362492656. Its totient is φ = 218796427840.

The previous prime is 820486604401. The next prime is 820486604461. The reversal of 820486604460 is 64406684028.

It is not an unprimeable number, because it can be changed into a prime (820486604461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6837388311 + ... + 6837388430.

It is an arithmetic number, because the mean of its divisors is an integer number (95723437194).

Almost surely, 2^820486604460 is an apocalyptic number.

It is an amenable number.

820486604460 is an abundant number, since it is smaller than the sum of its proper divisors (1476875888196).

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

820486604460 is a wasteful number, since it uses less digits than its factorization.

820486604460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13674776753 (or 13674776751 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 820486604460 in words is "eight hundred twenty billion, four hundred eighty-six million, six hundred four thousand, four hundred sixty".