212766802864 has 40 divisors (see below), whose sum is σ = 513956176128. Its totient is φ = 82896156480.

The previous prime is 212766802861. The next prime is 212766802889. The reversal of 212766802864 is 468208667212.

212766802864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212766802861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86348932 + ... + 86351395.

Almost surely, 2^212766802864 is an apocalyptic number.

It is an amenable number.

212766802864 is an abundant number, since it is smaller than the sum of its proper divisors (301189373264).

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

212766802864 is a wasteful number, since it uses less digits than its factorization.

212766802864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172700353 (or 172700347 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 212766802864 in words is "two hundred twelve billion, seven hundred sixty-six million, eight hundred two thousand, eight hundred sixty-four".