10400043461 has 2 divisors, whose sum is σ = 10400043462. Its totient is φ = 10400043460.

The previous prime is 10400043397. The next prime is 10400043491. The reversal of 10400043461 is 16434000401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8391659236 + 2008384225 = 91606^2 + 44815^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400043461 - 2⁶ = 10400043397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400043491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200021730 + 5200021731.

It is an arithmetic number, because the mean of its divisors is an integer number (5200021731).

Almost surely, 2^10400043461 is an apocalyptic number.

It is an amenable number.

10400043461 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400043461 is an equidigital number, since it uses as much as digits as its factorization.

10400043461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10400043461 its reverse (16434000401), we get a palindrome (26834043862).

The spelling of 10400043461 in words is "ten billion, four hundred million, forty-three thousand, four hundred sixty-one".