863850876288 has 128 divisors (see below), whose sum is σ = 2356334517600. Its totient is φ = 280238161920.

The previous prime is 863850876277. The next prime is 863850876311. The reversal of 863850876288 is 882678058368.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6372220 + ... + 6506372.

Almost surely, 2^863850876288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863850876288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1178167258800).

863850876288 is an abundant number, since it is smaller than the sum of its proper divisors (1492483641312).

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

863850876288 is a wasteful number, since it uses less digits than its factorization.

863850876288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134620 (or 134608 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 69.

The spelling of 863850876288 in words is "eight hundred sixty-three billion, eight hundred fifty million, eight hundred seventy-six thousand, two hundred eighty-eight".