863224872444 has 96 divisors (see below), whose sum is σ = 2470859354880. Its totient is φ = 258431659200.

The previous prime is 863224872427. The next prime is 863224872463. The reversal of 863224872444 is 444278422368.

863224872444 is a `hidden beast` number, since 86 + 3 + 22 + 487 + 24 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4278627 + ... + 4475834.

It is an arithmetic number, because the mean of its divisors is an integer number (25738118280).

Almost surely, 2^863224872444 is an apocalyptic number.

It is an amenable number.

863224872444 is an abundant number, since it is smaller than the sum of its proper divisors (1607634482436).

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

863224872444 is a wasteful number, since it uses less digits than its factorization.

863224872444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754568 (or 8754560 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 54.

The spelling of 863224872444 in words is "eight hundred sixty-three billion, two hundred twenty-four million, eight hundred seventy-two thousand, four hundred forty-four".