2623045202621 has 2 divisors, whose sum is σ = 2623045202622. Its totient is φ = 2623045202620.

The previous prime is 2623045202573. The next prime is 2623045202633. The reversal of 2623045202621 is 1262025403262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2074536105625 + 548509096996 = 1440325^2 + 740614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2623045202621 - 2¹⁰ = 2623045201597 is a prime.

It is a super-2 number, since 2×2623045202621² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2623045202651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311522601310 + 1311522601311.

It is an arithmetic number, because the mean of its divisors is an integer number (1311522601311).

Almost surely, 2^{2623045202621} is an apocalyptic number.

It is an amenable number.

2623045202621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2623045202621 is an equidigital number, since it uses as much as digits as its factorization.

2623045202621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 2623045202621 in words is "two trillion, six hundred twenty-three billion, forty-five million, two hundred two thousand, six hundred twenty-one".