53418882709 has 2 divisors, whose sum is σ = 53418882710. Its totient is φ = 53418882708.

The previous prime is 53418882667. The next prime is 53418882721. The reversal of 53418882709 is 90728881435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51732137809 + 1686744900 = 227447^2 + 41070^2 .

It is a cyclic number.

It is not a de Polignac number, because 53418882709 - 2¹⁹ = 53418358421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53418882709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53418882779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26709441354 + 26709441355.

It is an arithmetic number, because the mean of its divisors is an integer number (26709441355).

Almost surely, 2^53418882709 is an apocalyptic number.

It is an amenable number.

53418882709 is a deficient number, since it is larger than the sum of its proper divisors (1).

53418882709 is an equidigital number, since it uses as much as digits as its factorization.

53418882709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 53418882709 in words is "fifty-three billion, four hundred eighteen million, eight hundred eighty-two thousand, seven hundred nine".