863230778448 has 80 divisors (see below), whose sum is σ = 2336241470976. Its totient is φ = 274136368000.

The previous prime is 863230778447. The next prime is 863230778489. The reversal of 863230778448 is 844877032368.

It is a super-2 number, since 2×863230778448² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863230778391 and 863230778400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863230778447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280490 + ... + 1834697.

Almost surely, 2^863230778448 is an apocalyptic number.

It is an amenable number.

863230778448 is an abundant number, since it is smaller than the sum of its proper divisors (1473010692528).

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

863230778448 is a wasteful number, since it uses less digits than its factorization.

863230778448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115472 (or 3115466 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 60.

The spelling of 863230778448 in words is "eight hundred sixty-three billion, two hundred thirty million, seven hundred seventy-eight thousand, four hundred forty-eight".