863880589692 has 96 divisors (see below), whose sum is σ = 2379014971200. Its totient is φ = 270155298816.

The previous prime is 863880589661. The next prime is 863880589727. The reversal of 863880589692 is 296985088368.

863880589692 is a `hidden beast` number, since 8 + 6 + 38 + 8 + 0 + 589 + 6 + 9 + 2 = 666.

863880589692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×863880589692⁴ (a number of 49 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 863880589692.

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, 176967 + ... + 1326302.

It is an arithmetic number, because the mean of its divisors is an integer number (24781405950).

Almost surely, 2^863880589692 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 863880589692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189507485600).

863880589692 is an abundant number, since it is smaller than the sum of its proper divisors (1515134381508).

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

863880589692 is a wasteful number, since it uses less digits than its factorization.

863880589692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503612 (or 1503604 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 863880589692 in words is "eight hundred sixty-three billion, eight hundred eighty million, five hundred eighty-nine thousand, six hundred ninety-two".