422978952819 has 64 divisors (see below), whose sum is σ = 622351319040. Its totient is φ = 254647895040.

The previous prime is 422978952797. The next prime is 422978952829. The reversal of 422978952819 is 918259879224.

It is not a de Polignac number, because 422978952819 - 2⁷ = 422978952691 is a prime.

It is a super-2 number, since 2×422978952819² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422978952819.

It is not an unprimeable number, because it can be changed into a prime (422978952829) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93722307 + ... + 93726819.

It is an arithmetic number, because the mean of its divisors is an integer number (9724239360).

Almost surely, 2^422978952819 is an apocalyptic number.

422978952819 is a deficient number, since it is larger than the sum of its proper divisors (199372366221).

422978952819 is a wasteful number, since it uses less digits than its factorization.

422978952819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its digits is 52254720, while the sum is 66.

The spelling of 422978952819 in words is "four hundred twenty-two billion, nine hundred seventy-eight million, nine hundred fifty-two thousand, eight hundred nineteen".