10400776447 has 2 divisors, whose sum is σ = 10400776448. Its totient is φ = 10400776446.

The previous prime is 10400776429. The next prime is 10400776459. The reversal of 10400776447 is 74467700401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10400776447 - 2²⁷ = 10266558719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400776417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200388223 + 5200388224.

It is an arithmetic number, because the mean of its divisors is an integer number (5200388224).

Almost surely, 2^10400776447 is an apocalyptic number.

10400776447 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400776447 is an equidigital number, since it uses as much as digits as its factorization.

10400776447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 10400776447 in words is "ten billion, four hundred million, seven hundred seventy-six thousand, four hundred forty-seven".