1026936508621 has 2 divisors, whose sum is σ = 1026936508622. Its totient is φ = 1026936508620.

The previous prime is 1026936508583. The next prime is 1026936508669. The reversal of 1026936508621 is 1268056396201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1021009202500 + 5927306121 = 1010450^2 + 76989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026936508621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026936508421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513468254310 + 513468254311.

It is an arithmetic number, because the mean of its divisors is an integer number (513468254311).

Almost surely, 2^{1026936508621} is an apocalyptic number.

It is an amenable number.

1026936508621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026936508621 is an equidigital number, since it uses as much as digits as its factorization.

1026936508621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 1026936508621 in words is "one trillion, twenty-six billion, nine hundred thirty-six million, five hundred eight thousand, six hundred twenty-one".