10400121469 has 2 divisors, whose sum is σ = 10400121470. Its totient is φ = 10400121468.

The previous prime is 10400121463. The next prime is 10400121493. The reversal of 10400121469 is 96412100401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7282574244 + 3117547225 = 85338^2 + 55835^2 .

It is an emirp because it is prime and its reverse (96412100401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10400121469 - 2⁵ = 10400121437 is a prime.

It is a super-2 number, since 2×10400121469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400121463) 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, 5200060734 + 5200060735.

It is an arithmetic number, because the mean of its divisors is an integer number (5200060735).

Almost surely, 2^10400121469 is an apocalyptic number.

It is an amenable number.

10400121469 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400121469 is an equidigital number, since it uses as much as digits as its factorization.

10400121469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 10400121469 in words is "ten billion, four hundred million, one hundred twenty-one thousand, four hundred sixty-nine".