2100045949997 has 2 divisors, whose sum is σ = 2100045949998. Its totient is φ = 2100045949996.

The previous prime is 2100045949957. The next prime is 2100045950003. The reversal of 2100045949997 is 7999495400012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192702067881 + 907343882116 = 1092109^2 + 952546^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100045949997 - 2⁸ = 2100045949741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100045949957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050022974998 + 1050022974999.

It is an arithmetic number, because the mean of its divisors is an integer number (1050022974999).

Almost surely, 2^{2100045949997} is an apocalyptic number.

It is an amenable number.

2100045949997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100045949997 is an equidigital number, since it uses as much as digits as its factorization.

2100045949997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The spelling of 2100045949997 in words is "two trillion, one hundred billion, forty-five million, nine hundred forty-nine thousand, nine hundred ninety-seven".