2026421565653 has 2 divisors, whose sum is σ = 2026421565654. Its totient is φ = 2026421565652.

The previous prime is 2026421565607. The next prime is 2026421565703. The reversal of 2026421565653 is 3565651246202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1902614698609 + 123806867044 = 1379353^2 + 351862^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026421565653 - 2⁶ = 2026421565589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2026421565598 and 2026421565607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026421565353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013210782826 + 1013210782827.

It is an arithmetic number, because the mean of its divisors is an integer number (1013210782827).

Almost surely, 2^{2026421565653} is an apocalyptic number.

It is an amenable number.

2026421565653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026421565653 is an equidigital number, since it uses as much as digits as its factorization.

2026421565653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 2026421565653 in words is "two trillion, twenty-six billion, four hundred twenty-one million, five hundred sixty-five thousand, six hundred fifty-three".