819173480 has 32 divisors (see below), whose sum is σ = 1865354400. Its totient is φ = 323720256.

The previous prime is 819173461. The next prime is 819173513. The reversal of 819173480 is 84371918.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120050 + ... + 126689.

It is an arithmetic number, because the mean of its divisors is an integer number (58292325).

Almost surely, 2^819173480 is an apocalyptic number.

It is an amenable number.

819173480 is an abundant number, since it is smaller than the sum of its proper divisors (1046180920).

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

819173480 is a wasteful number, since it uses less digits than its factorization.

819173480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246833 (or 246829 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 819173480 is about 28621.2068229137. The cubic root of 819173480 is about 935.6755791204.

The spelling of 819173480 in words is "eight hundred nineteen million, one hundred seventy-three thousand, four hundred eighty".