276964945920 has 728 divisors, whose sum is σ = 1073901827376. Its totient is φ = 68128210944.

The previous prime is 276964945913. The next prime is 276964945949. The reversal of 276964945920 is 29549469672.

276964945920 is a `hidden beast` number, since 2 + 7 + 6 + 96 + 494 + 59 + 2 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 194088247 + ... + 194089673.

Almost surely, 2^276964945920 is an apocalyptic number.

276964945920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276964945920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536950913688).

276964945920 is an abundant number, since it is smaller than the sum of its proper divisors (796936881456).

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

276964945920 is an equidigital number, since it uses as much as digits as its factorization.

276964945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 276964945920 in words is "two hundred seventy-six billion, nine hundred sixty-four million, nine hundred forty-five thousand, nine hundred twenty".