276825997640 has 64 divisors (see below), whose sum is σ = 644362268400. Its totient is φ = 106951200768.

The previous prime is 276825997639. The next prime is 276825997663. The reversal of 276825997640 is 46799528672.

It can be written as a sum of positive squares in 8 ways, for example, as 217530825604 + 59295172036 = 466402^2 + 243506^2 .

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 15 ways as a sum of consecutive naturals, for example, 479885 + ... + 885404.

Almost surely, 2^276825997640 is an apocalyptic number.

276825997640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276825997640 is an abundant number, since it is smaller than the sum of its proper divisors (367536270760).

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

276825997640 is a wasteful number, since it uses less digits than its factorization.

276825997640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365474 (or 1365470 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 276825997640 in words is "two hundred seventy-six billion, eight hundred twenty-five million, nine hundred ninety-seven thousand, six hundred forty".