852172973452 has 12 divisors (see below), whose sum is σ = 1491309943200. Its totient is φ = 426084418256.

The previous prime is 852172973423. The next prime is 852172973503. The reversal of 852172973452 is 254379271258.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 852172973393 and 852172973402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760653 + ... + 1510939.

It is an arithmetic number, because the mean of its divisors is an integer number (124275828600).

Almost surely, 2^852172973452 is an apocalyptic number.

It is an amenable number.

852172973452 is a deficient number, since it is larger than the sum of its proper divisors (639136969748).

852172973452 is a wasteful number, since it uses less digits than its factorization.

852172973452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034240 (or 1034238 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 852172973452 in words is "eight hundred fifty-two billion, one hundred seventy-two million, nine hundred seventy-three thousand, four hundred fifty-two".