398878772822 has 8 divisors (see below), whose sum is σ = 599123434896. Its totient is φ = 199170961192.

The previous prime is 398878772819. The next prime is 398878772839. The reversal of 398878772822 is 228277878893.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134210753 + ... + 134213724.

It is an arithmetic number, because the mean of its divisors is an integer number (74890429362).

Almost surely, 2^398878772822 is an apocalyptic number.

398878772822 is a deficient number, since it is larger than the sum of its proper divisors (200244662074).

398878772822 is a wasteful number, since it uses less digits than its factorization.

398878772822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268425222.

The product of its digits is 303464448, while the sum is 71.

The spelling of 398878772822 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, seven hundred seventy-two thousand, eight hundred twenty-two".