80400488048440 has 256 divisors, whose sum is σ = 214270259040000. Its totient is φ = 26565974507520.

The previous prime is 80400488048371. The next prime is 80400488048443. The reversal of 80400488048440 is 4484088400408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80400488048443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11835781684 + ... + 11835788476.

It is an arithmetic number, because the mean of its divisors is an integer number (836993199375).

Almost surely, 2^{80400488048440} 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 80400488048440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107135129520000).

80400488048440 is an abundant number, since it is smaller than the sum of its proper divisors (133869770991560).

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

80400488048440 is a wasteful number, since it uses less digits than its factorization.

80400488048440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330 (or 9326 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 52.

The spelling of 80400488048440 in words is "eighty trillion, four hundred billion, four hundred eighty-eight million, forty-eight thousand, four hundred forty".