4772346917878 has 4 divisors (see below), whose sum is σ = 7158520376820. Its totient is φ = 2386173458938.

The previous prime is 4772346917837. The next prime is 4772346917941. The reversal of 4772346917878 is 8787196432774.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4772346917878.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1193086729468 + ... + 1193086729471.

It is an arithmetic number, because the mean of its divisors is an integer number (1789630094205).

Almost surely, 2^{4772346917878} is an apocalyptic number.

4772346917878 is a deficient number, since it is larger than the sum of its proper divisors (2386173458942).

4772346917878 is a wasteful number, since it uses less digits than its factorization.

4772346917878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386173458941.

The product of its digits is 796594176, while the sum is 73.

The spelling of 4772346917878 in words is "four trillion, seven hundred seventy-two billion, three hundred forty-six million, nine hundred seventeen thousand, eight hundred seventy-eight".