80200078 has 16 divisors (see below), whose sum is σ = 139144320. Its totient is φ = 33956856.

The previous prime is 80200061. The next prime is 80200091. The reversal of 80200078 is 87000208.

It is a super-3 number, since 3×80200078³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33348 + ... + 35671.

It is an arithmetic number, because the mean of its divisors is an integer number (8696520).

Almost surely, 2^80200078 is an apocalyptic number.

80200078 is a deficient number, since it is larger than the sum of its proper divisors (58944242).

80200078 is a wasteful number, since it uses less digits than its factorization.

80200078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69111.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 80200078 is about 8955.4496257865. The cubic root of 80200078 is about 431.2458514479.

The spelling of 80200078 in words is "eighty million, two hundred thousand, seventy-eight".