80405267748 has 48 divisors (see below), whose sum is σ = 202830270720. Its totient is φ = 24643805184.

The previous prime is 80405267717. The next prime is 80405267749. The reversal of 80405267748 is 84776250408.

It is a self number, because there is not a number n which added to its sum of digits gives 80405267748.

It is not an unprimeable number, because it can be changed into a prime (80405267749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962668 + ... + 1042851.

It is an arithmetic number, because the mean of its divisors is an integer number (4225630640).

Almost surely, 2^80405267748 is an apocalyptic number.

It is an amenable number.

80405267748 is an abundant number, since it is smaller than the sum of its proper divisors (122425002972).

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

80405267748 is a wasteful number, since it uses less digits than its factorization.

80405267748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005796 (or 2005794 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 80405267748 in words is "eighty billion, four hundred five million, two hundred sixty-seven thousand, seven hundred forty-eight".