72852220850 has 48 divisors (see below), whose sum is σ = 135972485448. Its totient is φ = 29040560640.

The previous prime is 72852220843. The next prime is 72852220873. The reversal of 72852220850 is 5802225827.

It can be written as a sum of positive squares in 12 ways, for example, as 61321112161 + 11531108689 = 247631^2 + 107383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72852220798 and 72852220807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24973592 + ... + 24976508.

Almost surely, 2^72852220850 is an apocalyptic number.

72852220850 is a deficient number, since it is larger than the sum of its proper divisors (63120264598).

72852220850 is a wasteful number, since it uses less digits than its factorization.

72852220850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4474 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The spelling of 72852220850 in words is "seventy-two billion, eight hundred fifty-two million, two hundred twenty thousand, eight hundred fifty".