820057792834 has 16 divisors (see below), whose sum is σ = 1405861748928. Its totient is φ = 351441242352.

The previous prime is 820057792831. The next prime is 820057792837. The reversal of 820057792834 is 438297750028.

It is a happy number.

820057792834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (820057792831) and next prime (820057792837).

It is not an unprimeable number, because it can be changed into a prime (820057792831) 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, 580617 + ... + 1406140.

It is an arithmetic number, because the mean of its divisors is an integer number (87866359308).

Almost surely, 2^820057792834 is an apocalyptic number.

820057792834 is a deficient number, since it is larger than the sum of its proper divisors (585803956094).

820057792834 is a wasteful number, since it uses less digits than its factorization.

820057792834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016249.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 820057792834 in words is "eight hundred twenty billion, fifty-seven million, seven hundred ninety-two thousand, eight hundred thirty-four".