10400208785471 has 2 divisors, whose sum is σ = 10400208785472. Its totient is φ = 10400208785470.

The previous prime is 10400208785431. The next prime is 10400208785503. The reversal of 10400208785471 is 17458780200401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10400208785471 - 2²⁶ = 10400141676607 is a prime.

It is a super-3 number, since 3×10400208785471³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400208785431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200104392735 + 5200104392736.

It is an arithmetic number, because the mean of its divisors is an integer number (5200104392736).

Almost surely, 2^{10400208785471} is an apocalyptic number.

10400208785471 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400208785471 is an equidigital number, since it uses as much as digits as its factorization.

10400208785471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 501760, while the sum is 47.

Adding to 10400208785471 its reverse (17458780200401), we get a palindrome (27858988985872).

The spelling of 10400208785471 in words is "ten trillion, four hundred billion, two hundred eight million, seven hundred eighty-five thousand, four hundred seventy-one".