80444610078 has 64 divisors (see below), whose sum is σ = 185557370880. Its totient is φ = 22774325472.

The previous prime is 80444610041. The next prime is 80444610109. The reversal of 80444610078 is 87001644408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3040101 + ... + 3066447.

It is an arithmetic number, because the mean of its divisors is an integer number (2899333920).

Almost surely, 2^80444610078 is an apocalyptic number.

80444610078 is an abundant number, since it is smaller than the sum of its proper divisors (105112760802).

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

80444610078 is a wasteful number, since it uses less digits than its factorization.

80444610078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27021.

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 80444610078 in words is "eighty billion, four hundred forty-four million, six hundred ten thousand, seventy-eight".