8231212317572 has 48 divisors (see below), whose sum is σ = 14545261995264. Its totient is φ = 4075677600000.

The previous prime is 8231212317511. The next prime is 8231212317583. The reversal of 8231212317572 is 2757132121328.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126755672 + ... + 126820592.

It is an arithmetic number, because the mean of its divisors is an integer number (303026291568).

Almost surely, 2^{8231212317572} is an apocalyptic number.

It is an amenable number.

8231212317572 is a deficient number, since it is larger than the sum of its proper divisors (6314049677692).

8231212317572 is a wasteful number, since it uses less digits than its factorization.

8231212317572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65900 (or 65898 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The spelling of 8231212317572 in words is "eight trillion, two hundred thirty-one billion, two hundred twelve million, three hundred seventeen thousand, five hundred seventy-two".