276534881064672 has 96 divisors (see below), whose sum is σ = 757578865720320. Its totient is φ = 88157300267520.

The previous prime is 276534881064643. The next prime is 276534881064677. The reversal of 276534881064672 is 276460188435672.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a junction number, because it is equal to n+sod(n) for n = 276534881064597 and 276534881064606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276534881064677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5306329 + ... + 24108647.

It is an arithmetic number, because the mean of its divisors is an integer number (7891446517920).

Almost surely, 2^{276534881064672} is an apocalyptic number.

It is an amenable number.

276534881064672 is an abundant number, since it is smaller than the sum of its proper divisors (481043984655648).

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

276534881064672 is a wasteful number, since it uses less digits than its factorization.

276534881064672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809016 (or 18809008 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 69.

The spelling of 276534881064672 in words is "two hundred seventy-six trillion, five hundred thirty-four billion, eight hundred eighty-one million, sixty-four thousand, six hundred seventy-two".