80618368864 has 192 divisors, whose sum is σ = 191942037504. Its totient is φ = 32901120000.

The previous prime is 80618368849. The next prime is 80618368877. The reversal of 80618368864 is 46886381608.

It is a junction number, because it is equal to n+sod(n) for n = 80618368799 and 80618368808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13167724 + ... + 13173844.

It is an arithmetic number, because the mean of its divisors is an integer number (999698112).

Almost surely, 2^80618368864 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 80618368864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95971018752).

80618368864 is an abundant number, since it is smaller than the sum of its proper divisors (111323668640).

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

80618368864 is a wasteful number, since it uses less digits than its factorization.

80618368864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261 (or 6253 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 80618368864 in words is "eighty billion, six hundred eighteen million, three hundred sixty-eight thousand, eight hundred sixty-four".