80425778 has 8 divisors (see below), whose sum is σ = 120908700. Its totient is φ = 40122880.

The previous prime is 80425777. The next prime is 80425783. The reversal of 80425778 is 87752408.

It can be written as a sum of positive squares in 2 ways, for example, as 79691329 + 734449 = 8927^2 + 857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80425777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43883 + ... + 45678.

Almost surely, 2^80425778 is an apocalyptic number.

80425778 is a deficient number, since it is larger than the sum of its proper divisors (40482922).

80425778 is a wasteful number, since it uses less digits than its factorization.

80425778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90012.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 80425778 is about 8968.0420382601. The cubic root of 80425778 is about 431.6500115980.

The spelling of 80425778 in words is "eighty million, four hundred twenty-five thousand, seven hundred seventy-eight".