863455416894 has 96 divisors (see below), whose sum is σ = 2184365753856. Its totient is φ = 241409678400.

The previous prime is 863455416883. The next prime is 863455416983. The reversal of 863455416894 is 498614554368.

863455416894 is a `hidden beast` number, since 8 + 6 + 3 + 4 + 5 + 541 + 6 + 89 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 936064 + ... + 1613420.

It is an arithmetic number, because the mean of its divisors is an integer number (22753809936).

Almost surely, 2^863455416894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863455416894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092182876928).

863455416894 is an abundant number, since it is smaller than the sum of its proper divisors (1320910336962).

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

863455416894 is a wasteful number, since it uses less digits than its factorization.

863455416894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677590 (or 677587 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 63.

The spelling of 863455416894 in words is "eight hundred sixty-three billion, four hundred fifty-five million, four hundred sixteen thousand, eight hundred ninety-four".