276625304242421 has 4 divisors (see below), whose sum is σ = 276695710279500. Its totient is φ = 276554898205344.

The previous prime is 276625304242369. The next prime is 276625304242447. The reversal of 276625304242421 is 124242403526672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22856899630321 + 253768404612100 = 4780889^2 + 15930110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276625304242421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 276625304242421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276625304242481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35203012646 + ... + 35203020503.

It is an arithmetic number, because the mean of its divisors is an integer number (69173927569875).

Almost surely, 2^{276625304242421} is an apocalyptic number.

It is an amenable number.

276625304242421 is a deficient number, since it is larger than the sum of its proper divisors (70406037079).

276625304242421 is an equidigital number, since it uses as much as digits as its factorization.

276625304242421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70406037078.

The product of its (nonzero) digits is 7741440, while the sum is 50.

The spelling of 276625304242421 in words is "two hundred seventy-six trillion, six hundred twenty-five billion, three hundred four million, two hundred forty-two thousand, four hundred twenty-one".