80811035838720 has 1296 divisors, whose sum is σ = 319435799679360. Its totient is φ = 19545892945920.

The previous prime is 80811035838647. The next prime is 80811035838761. The reversal of 80811035838720 is 2783853011808.

80811035838720 is a `hidden beast` number, since 80 + 8 + 110 + 3 + 58 + 387 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18328651876 + ... + 18328656284.

Almost surely, 2^{80811035838720} is an apocalyptic number.

80811035838720 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 80811035838720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159717899839680).

80811035838720 is an abundant number, since it is smaller than the sum of its proper divisors (238624763840640).

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

80811035838720 is a wasteful number, since it uses less digits than its factorization.

80811035838720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954 (or 4917 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 80811035838720 in words is "eighty trillion, eight hundred eleven billion, thirty-five million, eight hundred thirty-eight thousand, seven hundred twenty".