80318917548 has 96 divisors (see below), whose sum is σ = 211864773120. Its totient is φ = 26310173760.

The previous prime is 80318917543. The next prime is 80318917559. The reversal of 80318917548 is 84571981308.

80318917548 is a `hidden beast` number, since 8 + 0 + 3 + 1 + 8 + 91 + 7 + 548 = 666.

It is a super-2 number, since 2×80318917548² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 80318917494 and 80318917503.

It is not an unprimeable number, because it can be changed into a prime (80318917543) 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 31 ways as a sum of consecutive naturals, for example, 1429686 + ... + 1484802.

It is an arithmetic number, because the mean of its divisors is an integer number (2206924720).

Almost surely, 2^80318917548 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 80318917548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105932386560).

80318917548 is an abundant number, since it is smaller than the sum of its proper divisors (131545855572).

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

80318917548 is a wasteful number, since it uses less digits than its factorization.

80318917548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55364 (or 55356 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 80318917548 in words is "eighty billion, three hundred eighteen million, nine hundred seventeen thousand, five hundred forty-eight".