819145373480 has 96 divisors (see below), whose sum is σ = 2179135292040. Its totient is φ = 276245706240.

The previous prime is 819145373479. The next prime is 819145373509. The reversal of 819145373480 is 84373541918.

It can be written as a sum of positive squares in 4 ways, for example, as 323030816164 + 496114557316 = 568358^2 + 704354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3306107 + ... + 3545226.

Almost surely, 2^819145373480 is an apocalyptic number.

It is an amenable number.

819145373480 is an abundant number, since it is smaller than the sum of its proper divisors (1359989918560).

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

819145373480 is a wasteful number, since it uses less digits than its factorization.

819145373480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851419 (or 6851408 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 819145373480 in words is "eight hundred nineteen billion, one hundred forty-five million, three hundred seventy-three thousand, four hundred eighty".