85234772212 has 6 divisors (see below), whose sum is σ = 149160851378. Its totient is φ = 42617386104.

The previous prime is 85234772201. The next prime is 85234772251. The reversal of 85234772212 is 21227743258.

It can be written as a sum of positive squares in only one way, i.e., 59085941776 + 26148830436 = 243076^2 + 161706^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10654346523 + ... + 10654346530.

Almost surely, 2^85234772212 is an apocalyptic number.

It is an amenable number.

85234772212 is a deficient number, since it is larger than the sum of its proper divisors (63926079166).

85234772212 is a wasteful number, since it uses less digits than its factorization.

85234772212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21308693057 (or 21308693055 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The spelling of 85234772212 in words is "eighty-five billion, two hundred thirty-four million, seven hundred seventy-two thousand, two hundred twelve".