80508773436 has 192 divisors, whose sum is σ = 233288294400. Its totient is φ = 21042641664.

The previous prime is 80508773369. The next prime is 80508773437. The reversal of 80508773436 is 63437780508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80508773437) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 81900601 + ... + 81901583.

It is an arithmetic number, because the mean of its divisors is an integer number (1215043200).

Almost surely, 2^80508773436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80508773436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116644147200).

80508773436 is an abundant number, since it is smaller than the sum of its proper divisors (152779520964).

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

80508773436 is a wasteful number, since it uses less digits than its factorization.

80508773436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 80508773436 in words is "eighty billion, five hundred eight million, seven hundred seventy-three thousand, four hundred thirty-six".