820867466748 has 48 divisors (see below), whose sum is σ = 2200440582144. Its totient is φ = 233305632960.

The previous prime is 820867466747. The next prime is 820867466767. The reversal of 820867466748 is 847664768028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820867466743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25565715 + ... + 25597802.

It is an arithmetic number, because the mean of its divisors is an integer number (45842512128).

Almost surely, 2^820867466748 is an apocalyptic number.

It is an amenable number.

820867466748 is an abundant number, since it is smaller than the sum of its proper divisors (1379573115396).

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

820867466748 is a wasteful number, since it uses less digits than its factorization.

820867466748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51163722 (or 51163720 counting only the distinct ones).

The product of its (nonzero) digits is 173408256, while the sum is 66.

The spelling of 820867466748 in words is "eight hundred twenty billion, eight hundred sixty-seven million, four hundred sixty-six thousand, seven hundred forty-eight".