2478227562869 has 2 divisors, whose sum is σ = 2478227562870. Its totient is φ = 2478227562868.

The previous prime is 2478227562847. The next prime is 2478227562901. The reversal of 2478227562869 is 9682657228742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1576795047025 + 901432515844 = 1255705^2 + 949438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2478227562869 is a prime.

It is a super-2 number, since 2×2478227562869² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478227562799 and 2478227562808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478227562269) 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 as a sum of consecutive naturals, namely, 1239113781434 + 1239113781435.

It is an arithmetic number, because the mean of its divisors is an integer number (1239113781435).

Almost surely, 2^{2478227562869} is an apocalyptic number.

It is an amenable number.

2478227562869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478227562869 is an equidigital number, since it uses as much as digits as its factorization.

2478227562869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 325140480, while the sum is 68.

The spelling of 2478227562869 in words is "two trillion, four hundred seventy-eight billion, two hundred twenty-seven million, five hundred sixty-two thousand, eight hundred sixty-nine".