820123725710 has 16 divisors (see below), whose sum is σ = 1476234023616. Its totient is φ = 328046975328.

The previous prime is 820123725709. The next prime is 820123725769. The reversal of 820123725710 is 17527321028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624907 + ... + 2068953.

It is an arithmetic number, because the mean of its divisors is an integer number (92264626476).

Almost surely, 2^820123725710 is an apocalyptic number.

820123725710 is a deficient number, since it is larger than the sum of its proper divisors (656110297906).

820123725710 is a wasteful number, since it uses less digits than its factorization.

820123725710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628747.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 820123725710 in words is "eight hundred twenty billion, one hundred twenty-three million, seven hundred twenty-five thousand, seven hundred ten".