276420373872 has 80 divisors (see below), whose sum is σ = 731331420960. Its totient is φ = 89940934656.

The previous prime is 276420373777. The next prime is 276420373937. The reversal of 276420373872 is 278373024672.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66747 + ... + 746522.

It is an arithmetic number, because the mean of its divisors is an integer number (9141642762).

Almost surely, 2^276420373872 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 276420373872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365665710480).

276420373872 is an abundant number, since it is smaller than the sum of its proper divisors (454911047088).

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

276420373872 is a wasteful number, since it uses less digits than its factorization.

276420373872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813450 (or 813444 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 276420373872 in words is "two hundred seventy-six billion, four hundred twenty million, three hundred seventy-three thousand, eight hundred seventy-two".