80437134920 has 32 divisors (see below), whose sum is σ = 181015369920. Its totient is φ = 32169197760.

The previous prime is 80437134917. The next prime is 80437134929. The reversal of 80437134920 is 2943173408.

It is not an unprimeable number, because it can be changed into a prime (80437134929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57455 + ... + 405185.

It is an arithmetic number, because the mean of its divisors is an integer number (5656730310).

Almost surely, 2^80437134920 is an apocalyptic number.

It is an amenable number.

80437134920 is an abundant number, since it is smaller than the sum of its proper divisors (100578235000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80437134920 is a wasteful number, since it uses less digits than its factorization.

80437134920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353525 (or 353521 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 80437134920 in words is "eighty billion, four hundred thirty-seven million, one hundred thirty-four thousand, nine hundred twenty".