80775739344 has 160 divisors (see below), whose sum is σ = 219810931200. Its totient is φ = 25532723200.

The previous prime is 80775739333. The next prime is 80775739393. The reversal of 80775739344 is 44393757708.

It is a happy number.

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, 13778974 + ... + 13784834.

It is an arithmetic number, because the mean of its divisors is an integer number (1373818320).

Almost surely, 2^80775739344 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 80775739344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109905465600).

80775739344 is an abundant number, since it is smaller than the sum of its proper divisors (139035191856).

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

80775739344 is a wasteful number, since it uses less digits than its factorization.

80775739344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109 (or 6103 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 80775739344 in words is "eighty billion, seven hundred seventy-five million, seven hundred thirty-nine thousand, three hundred forty-four".