80440411400 has 24 divisors (see below), whose sum is σ = 187023956970. Its totient is φ = 32176164480.

The previous prime is 80440411273. The next prime is 80440411459. The reversal of 80440411400 is 411404408.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76838731204 + 3601680196 = 277198^2 + 60014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80440411400.

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 5 ways as a sum of consecutive naturals, for example, 201100829 + ... + 201101228.

Almost surely, 2^80440411400 is an apocalyptic number.

It is an amenable number.

80440411400 is an abundant number, since it is smaller than the sum of its proper divisors (106583545570).

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

80440411400 is a wasteful number, since it uses less digits than its factorization.

80440411400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402202073 (or 402202064 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 80440411400 its reverse (411404408), we get a palindrome (80851815808).

The spelling of 80440411400 in words is "eighty billion, four hundred forty million, four hundred eleven thousand, four hundred".