275580378709 has 2 divisors, whose sum is σ = 275580378710. Its totient is φ = 275580378708.

The previous prime is 275580378679. The next prime is 275580378719. The reversal of 275580378709 is 907873085572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237829831684 + 37750547025 = 487678^2 + 194295^2 .

It is a cyclic number.

It is not a de Polignac number, because 275580378709 - 2⁵ = 275580378677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275580378719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137790189354 + 137790189355.

It is an arithmetic number, because the mean of its divisors is an integer number (137790189355).

Almost surely, 2^275580378709 is an apocalyptic number.

It is an amenable number.

275580378709 is a deficient number, since it is larger than the sum of its proper divisors (1).

275580378709 is an equidigital number, since it uses as much as digits as its factorization.

275580378709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 275580378709 in words is "two hundred seventy-five billion, five hundred eighty million, three hundred seventy-eight thousand, seven hundred nine".