276805664268 has 48 divisors (see below), whose sum is σ = 776998360320. Its totient is φ = 74924841024.

The previous prime is 276805664257. The next prime is 276805664273. The reversal of 276805664268 is 862466508672.

276805664268 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 86716971 + ... + 86720162.

It is an arithmetic number, because the mean of its divisors is an integer number (16187465840).

Almost surely, 2^276805664268 is an apocalyptic number.

276805664268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

276805664268 is an abundant number, since it is smaller than the sum of its proper divisors (500192696052).

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

276805664268 is a wasteful number, since it uses less digits than its factorization.

276805664268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173437166 (or 173437164 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 60.

The spelling of 276805664268 in words is "two hundred seventy-six billion, eight hundred five million, six hundred sixty-four thousand, two hundred sixty-eight".