819462784064 has 28 divisors (see below), whose sum is σ = 1663938245904. Its totient is φ = 400202753664.

The previous prime is 819462784057. The next prime is 819462784069. The reversal of 819462784064 is 460487264918.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 819462783994 and 819462784012.

It is not an unprimeable number, because it can be changed into a prime (819462784069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148882202 + ... + 148887705.

Almost surely, 2^819462784064 is an apocalyptic number.

It is an amenable number.

819462784064 is an abundant number, since it is smaller than the sum of its proper divisors (844475461840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

819462784064 is a wasteful number, since it uses less digits than its factorization.

819462784064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297769962 (or 297769952 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 819462784064 in words is "eight hundred nineteen billion, four hundred sixty-two million, seven hundred eighty-four thousand, sixty-four".