1802145380353 has 2 divisors, whose sum is σ = 1802145380354. Its totient is φ = 1802145380352.

The previous prime is 1802145380327. The next prime is 1802145380389. The reversal of 1802145380353 is 3530835412081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1537344570609 + 264800809744 = 1239897^2 + 514588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1802145380353 - 2¹³ = 1802145372161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1802145380303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901072690176 + 901072690177.

It is an arithmetic number, because the mean of its divisors is an integer number (901072690177).

Almost surely, 2^{1802145380353} is an apocalyptic number.

It is an amenable number.

1802145380353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802145380353 is an equidigital number, since it uses as much as digits as its factorization.

1802145380353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 1802145380353 in words is "one trillion, eight hundred two billion, one hundred forty-five million, three hundred eighty thousand, three hundred fifty-three".