1832735780021 has 2 divisors, whose sum is σ = 1832735780022. Its totient is φ = 1832735780020.

The previous prime is 1832735779999. The next prime is 1832735780039. The reversal of 1832735780021 is 1200875372381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1689768607921 + 142967172100 = 1299911^2 + 378110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1832735780021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1832738780021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916367890010 + 916367890011.

It is an arithmetic number, because the mean of its divisors is an integer number (916367890011).

Almost surely, 2^{1832735780021} is an apocalyptic number.

It is an amenable number.

1832735780021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1832735780021 is an equidigital number, since it uses as much as digits as its factorization.

1832735780021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 1832735780021 in words is "one trillion, eight hundred thirty-two billion, seven hundred thirty-five million, seven hundred eighty thousand, twenty-one".