146778002378 has 8 divisors (see below), whose sum is σ = 251619432672. Its totient is φ = 62904858156.

The previous prime is 146778002359. The next prime is 146778002381. The reversal of 146778002378 is 873200877641.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5242071500 + ... + 5242071527.

It is an arithmetic number, because the mean of its divisors is an integer number (31452429084).

Almost surely, 2^146778002378 is an apocalyptic number.

146778002378 is a deficient number, since it is larger than the sum of its proper divisors (104841430294).

146778002378 is a wasteful number, since it uses less digits than its factorization.

146778002378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484143036.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 146778002378 in words is "one hundred forty-six billion, seven hundred seventy-eight million, two thousand, three hundred seventy-eight".