80953229012 has 18 divisors (see below), whose sum is σ = 142168765914. Its totient is φ = 40333615440.

The previous prime is 80953228991. The next prime is 80953229017. The reversal of 80953229012 is 21092235908.

It can be written as a sum of positive squares in only one way, i.e., 79848065476 + 1105163536 = 282574^2 + 33244^2 .

It is a super-2 number, since 2×80953229012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80953229017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9736337 + ... + 9744647.

It is an arithmetic number, because the mean of its divisors is an integer number (7898264773).

Almost surely, 2^80953229012 is an apocalyptic number.

It is an amenable number.

80953229012 is a deficient number, since it is larger than the sum of its proper divisors (61215536902).

80953229012 is an frugal number, since it uses more digits than its factorization.

80953229012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16919 (or 8606 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 80953229012 in words is "eighty billion, nine hundred fifty-three million, two hundred twenty-nine thousand, twelve".