478748831069 has 2 divisors, whose sum is σ = 478748831070. Its totient is φ = 478748831068.

The previous prime is 478748831051. The next prime is 478748831131. The reversal of 478748831069 is 960138847874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444806295844 + 33942535225 = 666938^2 + 184235^2 .

It is a cyclic number.

It is not a de Polignac number, because 478748831069 - 2¹² = 478748826973 is a prime.

It is a super-2 number, since 2×478748831069² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478748830996 and 478748831014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478748531069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239374415534 + 239374415535.

It is an arithmetic number, because the mean of its divisors is an integer number (239374415535).

Almost surely, 2^478748831069 is an apocalyptic number.

It is an amenable number.

478748831069 is a deficient number, since it is larger than the sum of its proper divisors (1).

478748831069 is an equidigital number, since it uses as much as digits as its factorization.

478748831069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 478748831069 in words is "four hundred seventy-eight billion, seven hundred forty-eight million, eight hundred thirty-one thousand, sixty-nine".