2621138058089 has 2 divisors, whose sum is σ = 2621138058090. Its totient is φ = 2621138058088.

The previous prime is 2621138058053. The next prime is 2621138058137. The reversal of 2621138058089 is 9808508311262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1843199946025 + 777938112064 = 1357645^2 + 882008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2621138058089 - 2⁸ = 2621138057833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2621138058089.

It is not a weakly prime, because it can be changed into another prime (2621138058289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310569029044 + 1310569029045.

It is an arithmetic number, because the mean of its divisors is an integer number (1310569029045).

Almost surely, 2^{2621138058089} is an apocalyptic number.

It is an amenable number.

2621138058089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621138058089 is an equidigital number, since it uses as much as digits as its factorization.

2621138058089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 2621138058089 in words is "two trillion, six hundred twenty-one billion, one hundred thirty-eight million, fifty-eight thousand, eighty-nine".