863115264 has 360 divisors, whose sum is σ = 2899636740. Its totient is φ = 255467520.

The previous prime is 863115251. The next prime is 863115287. The reversal of 863115264 is 462511368.

It is a happy number.

863115264 is a `hidden beast` number, since 8 + 631 + 15 + 2 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 20072427 + ... + 20072469.

Almost surely, 2^863115264 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 863115264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449818370).

863115264 is an abundant number, since it is smaller than the sum of its proper divisors (2036521476).

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

863115264 is a wasteful number, since it uses less digits than its factorization.

863115264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 59 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 863115264 is about 29378.8233937304. The cubic root of 863115264 is about 952.1154204149.

The spelling of 863115264 in words is "eight hundred sixty-three million, one hundred fifteen thousand, two hundred sixty-four".