26539920159461 has 2 divisors, whose sum is σ = 26539920159462. Its totient is φ = 26539920159460.

The previous prime is 26539920159457. The next prime is 26539920159551. The reversal of 26539920159461 is 16495102993562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25892730480100 + 647189679361 = 5088490^2 + 804481^2 .

It is a cyclic number.

It is not a de Polignac number, because 26539920159461 - 2² = 26539920159457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26539920159394 and 26539920159403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26539920129461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13269960079730 + 13269960079731.

It is an arithmetic number, because the mean of its divisors is an integer number (13269960079731).

Almost surely, 2^{26539920159461} is an apocalyptic number.

It is an amenable number.

26539920159461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26539920159461 is an equidigital number, since it uses as much as digits as its factorization.

26539920159461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31492800, while the sum is 62.

The spelling of 26539920159461 in words is "twenty-six trillion, five hundred thirty-nine billion, nine hundred twenty million, one hundred fifty-nine thousand, four hundred sixty-one".