1834038303821 has 2 divisors, whose sum is σ = 1834038303822. Its totient is φ = 1834038303820.

The previous prime is 1834038303803. The next prime is 1834038303833. The reversal of 1834038303821 is 1283038304381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1747184319721 + 86853984100 = 1321811^2 + 294710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1834038303821 is a prime.

It is a super-2 number, since 2×1834038303821² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1834038303871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917019151910 + 917019151911.

It is an arithmetic number, because the mean of its divisors is an integer number (917019151911).

Almost surely, 2^{1834038303821} is an apocalyptic number.

It is an amenable number.

1834038303821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834038303821 is an equidigital number, since it uses as much as digits as its factorization.

1834038303821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 1834038303821 in words is "one trillion, eight hundred thirty-four billion, thirty-eight million, three hundred three thousand, eight hundred twenty-one".