1040408893571 has 2 divisors, whose sum is σ = 1040408893572. Its totient is φ = 1040408893570.

The previous prime is 1040408893399. The next prime is 1040408893577. The reversal of 1040408893571 is 1753988040401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040408893571 - 2¹⁴ = 1040408877187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040408893577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520204446785 + 520204446786.

It is an arithmetic number, because the mean of its divisors is an integer number (520204446786).

Almost surely, 2^{1040408893571} is an apocalyptic number.

1040408893571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040408893571 is an equidigital number, since it uses as much as digits as its factorization.

1040408893571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 1040408893571 in words is "one trillion, forty billion, four hundred eight million, eight hundred ninety-three thousand, five hundred seventy-one".