80427737680 has 160 divisors (see below), whose sum is σ = 200936567808. Its totient is φ = 29860300800.

The previous prime is 80427737659. The next prime is 80427737693. The reversal of 80427737680 is 8673772408.

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 in 31 ways as a sum of consecutive naturals, for example, 29341110 + ... + 29343850.

Almost surely, 2^80427737680 is an apocalyptic number.

80427737680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80427737680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100468283904).

80427737680 is an abundant number, since it is smaller than the sum of its proper divisors (120508830128).

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

80427737680 is a wasteful number, since it uses less digits than its factorization.

80427737680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 80427737680 in words is "eighty billion, four hundred twenty-seven million, seven hundred thirty-seven thousand, six hundred eighty".