80936005728 has 48 divisors (see below), whose sum is σ = 212476808880. Its totient is φ = 26976155136.

The previous prime is 80936005727. The next prime is 80936005739. The reversal of 80936005728 is 82750063908.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80936005723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198726 + ... + 1264442.

It is an arithmetic number, because the mean of its divisors is an integer number (4426600185).

Almost surely, 2^80936005728 is an apocalyptic number.

It is an amenable number.

80936005728 is an abundant number, since it is smaller than the sum of its proper divisors (131540803152).

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

80936005728 is a wasteful number, since it uses less digits than its factorization.

80936005728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78559 (or 78551 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 80936005728 in words is "eighty billion, nine hundred thirty-six million, five thousand, seven hundred twenty-eight".