80427433328 has 80 divisors (see below), whose sum is σ = 171328367616. Its totient is φ = 36272171520.

The previous prime is 80427433283. The next prime is 80427433337. The reversal of 80427433328 is 82333472408.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 12281351 + ... + 12287897.

Almost surely, 2^80427433328 is an apocalyptic number.

80427433328 is a gapful number since it is divisible by the number (88) 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 80427433328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85664183808).

80427433328 is an abundant number, since it is smaller than the sum of its proper divisors (90900934288).

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

80427433328 is a wasteful number, since it uses less digits than its factorization.

80427433328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102 (or 7096 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 80427433328 in words is "eighty billion, four hundred twenty-seven million, four hundred thirty-three thousand, three hundred twenty-eight".