80289049920 has 224 divisors, whose sum is σ = 257234911488. Its totient is φ = 21216755712.

The previous prime is 80289049909. The next prime is 80289049921. The reversal of 80289049920 is 2994098208.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80289049921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58733077 + ... + 58734443.

Almost surely, 2^80289049920 is an apocalyptic number.

80289049920 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 80289049920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128617455744).

80289049920 is an abundant number, since it is smaller than the sum of its proper divisors (176945861568).

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

80289049920 is a wasteful number, since it uses less digits than its factorization.

80289049920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 80289049920 in words is "eighty billion, two hundred eighty-nine million, forty-nine thousand, nine hundred twenty".