78055335032578 has 64 divisors (see below), whose sum is σ = 127950099216768. Its totient is φ = 35573142758400.

The previous prime is 78055335032509. The next prime is 78055335032581. The reversal of 78055335032578 is 87523053355087.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52678753 + ... + 54140203.

It is an arithmetic number, because the mean of its divisors is an integer number (1999220300262).

Almost surely, 2^{78055335032578} is an apocalyptic number.

78055335032578 is a deficient number, since it is larger than the sum of its proper divisors (49894764184190).

78055335032578 is a wasteful number, since it uses less digits than its factorization.

78055335032578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461907.

The product of its (nonzero) digits is 105840000, while the sum is 61.

The spelling of 78055335032578 in words is "seventy-eight trillion, fifty-five billion, three hundred thirty-five million, thirty-two thousand, five hundred seventy-eight".