2866789017864 has 64 divisors (see below), whose sum is σ = 7970103960000. Its totient is φ = 954780203520.

The previous prime is 2866789017839. The next prime is 2866789017877. The reversal of 2866789017864 is 4687109876682.

2866789017864 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-2 number, since 2×2866789017864² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 2866789017792 and 2866789017801.

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, 5414089 + ... + 5919960.

It is an arithmetic number, because the mean of its divisors is an integer number (124532874375).

Almost surely, 2^{2866789017864} is an apocalyptic number.

2866789017864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2866789017864 is an abundant number, since it is smaller than the sum of its proper divisors (5103314942136).

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

2866789017864 is a wasteful number, since it uses less digits than its factorization.

2866789017864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11335235 (or 11335225 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 2866789017864 in words is "two trillion, eight hundred sixty-six billion, seven hundred eighty-nine million, seventeen thousand, eight hundred sixty-four".