819372862672 has 40 divisors (see below), whose sum is σ = 1953889137536. Its totient is φ = 324147505536.

The previous prime is 819372862663. The next prime is 819372862673. The reversal of 819372862672 is 276268273918.

It is a self number, because there is not a number n which added to its sum of digits gives 819372862672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819372862673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281376588 + ... + 281379499.

Almost surely, 2^819372862672 is an apocalyptic number.

It is an amenable number.

819372862672 is an abundant number, since it is smaller than the sum of its proper divisors (1134516274864).

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

819372862672 is a wasteful number, since it uses less digits than its factorization.

819372862672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562756115 (or 562756109 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 61.

The spelling of 819372862672 in words is "eight hundred nineteen billion, three hundred seventy-two million, eight hundred sixty-two thousand, six hundred seventy-two".