1772040100109 has 2 divisors, whose sum is σ = 1772040100110. Its totient is φ = 1772040100108.

The previous prime is 1772040099989. The next prime is 1772040100111. The reversal of 1772040100109 is 9010010402771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1769956177609 + 2083922500 = 1330397^2 + 45650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1772040100109 - 2²⁸ = 1771771664653 is a prime.

It is a super-2 number, since 2×1772040100109² (a number of 25 digits) contains 22 as substring.

Together with 1772040100111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1772040100169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886020050054 + 886020050055.

It is an arithmetic number, because the mean of its divisors is an integer number (886020050055).

Almost surely, 2^{1772040100109} is an apocalyptic number.

It is an amenable number.

1772040100109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1772040100109 is an equidigital number, since it uses as much as digits as its factorization.

1772040100109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 32.

The spelling of 1772040100109 in words is "one trillion, seven hundred seventy-two billion, forty million, one hundred thousand, one hundred nine".