80100078 has 32 divisors (see below), whose sum is σ = 162828960. Its totient is φ = 26265600.

The previous prime is 80100071. The next prime is 80100091. The reversal of 80100078 is 87000108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80100071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132978 + ... + 133578.

It is an arithmetic number, because the mean of its divisors is an integer number (5088405).

Almost surely, 2^80100078 is an apocalyptic number.

80100078 is an abundant number, since it is smaller than the sum of its proper divisors (82728882).

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

80100078 is a wasteful number, since it uses less digits than its factorization.

80100078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 80100078 is about 8949.8646917146. The cubic root of 80100078 is about 431.0665393973.

The spelling of 80100078 in words is "eighty million, one hundred thousand, seventy-eight".