108426287261 has 2 divisors, whose sum is σ = 108426287262. Its totient is φ = 108426287260.

The previous prime is 108426287227. The next prime is 108426287341. The reversal of 108426287261 is 162782624801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64958207161 + 43468080100 = 254869^2 + 208490^2 .

It is a cyclic number.

It is not a de Polignac number, because 108426287261 - 2⁶ = 108426287197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108426287201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54213143630 + 54213143631.

It is an arithmetic number, because the mean of its divisors is an integer number (54213143631).

Almost surely, 2^108426287261 is an apocalyptic number.

It is an amenable number.

108426287261 is a deficient number, since it is larger than the sum of its proper divisors (1).

108426287261 is an equidigital number, since it uses as much as digits as its factorization.

108426287261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 108426287261 in words is "one hundred eight billion, four hundred twenty-six million, two hundred eighty-seven thousand, two hundred sixty-one".