1405640658053 has 2 divisors, whose sum is σ = 1405640658054. Its totient is φ = 1405640658052.

The previous prime is 1405640658041. The next prime is 1405640658061. The reversal of 1405640658053 is 3508560465041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254146892769 + 151493765284 = 1119887^2 + 389222^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405640658053 - 2⁸ = 1405640657797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405640657989 and 1405640658007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405640658853) 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, 702820329026 + 702820329027.

It is an arithmetic number, because the mean of its divisors is an integer number (702820329027).

Almost surely, 2^{1405640658053} is an apocalyptic number.

It is an amenable number.

1405640658053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405640658053 is an equidigital number, since it uses as much as digits as its factorization.

1405640658053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 1405640658053 in words is "one trillion, four hundred five billion, six hundred forty million, six hundred fifty-eight thousand, fifty-three".