2750621188109 has 2 divisors, whose sum is σ = 2750621188110. Its totient is φ = 2750621188108.

The previous prime is 2750621188079. The next prime is 2750621188169. The reversal of 2750621188109 is 9018811260572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2664249856009 + 86371332100 = 1632253^2 + 293890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750621188109 - 2³⁶ = 2681901711373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2750621188169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375310594054 + 1375310594055.

It is an arithmetic number, because the mean of its divisors is an integer number (1375310594055).

Almost surely, 2^{2750621188109} is an apocalyptic number.

It is an amenable number.

2750621188109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750621188109 is an equidigital number, since it uses as much as digits as its factorization.

2750621188109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 2750621188109 in words is "two trillion, seven hundred fifty billion, six hundred twenty-one million, one hundred eighty-eight thousand, one hundred nine".