80447854657536 has 180 divisors, whose sum is σ = 232544023212592. Its totient is φ = 26799081652224.

The previous prime is 80447854657481. The next prime is 80447854657627. The reversal of 80447854657536 is 63575645874408.

80447854657536 is a `hidden beast` number, since 8 + 0 + 4 + 4 + 7 + 8 + 5 + 46 + 575 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235316421 + ... + 235658043.

Almost surely, 2^{80447854657536} 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 80447854657536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116272011606296).

80447854657536 is an abundant number, since it is smaller than the sum of its proper divisors (152096168555056).

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

80447854657536 is a wasteful number, since it uses less digits than its factorization.

80447854657536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343254 (or 343225 counting only the distinct ones).

The product of its (nonzero) digits is 2709504000, while the sum is 72.

The spelling of 80447854657536 in words is "eighty trillion, four hundred forty-seven billion, eight hundred fifty-four million, six hundred fifty-seven thousand, five hundred thirty-six".