2783239283021 has 2 divisors, whose sum is σ = 2783239283022. Its totient is φ = 2783239283020.

The previous prime is 2783239283003. The next prime is 2783239283119. The reversal of 2783239283021 is 1203829323872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2329023940996 + 454215342025 = 1526114^2 + 673955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2783239283021 - 2²⁶ = 2783172174157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2783239283621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391619641510 + 1391619641511.

It is an arithmetic number, because the mean of its divisors is an integer number (1391619641511).

Almost surely, 2^{2783239283021} is an apocalyptic number.

It is an amenable number.

2783239283021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2783239283021 is an equidigital number, since it uses as much as digits as its factorization.

2783239283021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 2783239283021 in words is "two trillion, seven hundred eighty-three billion, two hundred thirty-nine million, two hundred eighty-three thousand, twenty-one".