26087745461 has 2 divisors, whose sum is σ = 26087745462. Its totient is φ = 26087745460.

The previous prime is 26087745451. The next prime is 26087745493. The reversal of 26087745461 is 16454778062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25131760900 + 955984561 = 158530^2 + 30919^2 .

It is a cyclic number.

It is not a de Polignac number, because 26087745461 - 2¹⁴ = 26087729077 is a prime.

It is a super-2 number, since 2×26087745461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26087745401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13043872730 + 13043872731.

It is an arithmetic number, because the mean of its divisors is an integer number (13043872731).

Almost surely, 2^26087745461 is an apocalyptic number.

It is an amenable number.

26087745461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26087745461 is an equidigital number, since it uses as much as digits as its factorization.

26087745461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 26087745461 in words is "twenty-six billion, eighty-seven million, seven hundred forty-five thousand, four hundred sixty-one".