276525609961 has 16 divisors (see below), whose sum is σ = 289288080000. Its totient is φ = 263825388288.

The previous prime is 276525609947. The next prime is 276525609979. The reversal of 276525609961 is 169906525672.

It is a de Polignac number, because none of the positive numbers 2^k-276525609961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 276525609896 and 276525609905.

It is not an unprimeable number, because it can be changed into a prime (276525609901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24428875 + ... + 24440191.

It is an arithmetic number, because the mean of its divisors is an integer number (18080505000).

Almost surely, 2^276525609961 is an apocalyptic number.

It is an amenable number.

276525609961 is a deficient number, since it is larger than the sum of its proper divisors (12762470039).

276525609961 is a wasteful number, since it uses less digits than its factorization.

276525609961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13968.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 276525609961 in words is "two hundred seventy-six billion, five hundred twenty-five million, six hundred nine thousand, nine hundred sixty-one".