2145162697709 has 2 divisors, whose sum is σ = 2145162697710. Its totient is φ = 2145162697708.

The previous prime is 2145162697649. The next prime is 2145162697771. The reversal of 2145162697709 is 9077962615412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1467981829609 + 677180868100 = 1211603^2 + 822910^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145162697709 - 2⁴⁰ = 1045651069933 is a prime.

It is a super-3 number, since 3×2145162697709³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145162697789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072581348854 + 1072581348855.

It is an arithmetic number, because the mean of its divisors is an integer number (1072581348855).

Almost surely, 2^{2145162697709} is an apocalyptic number.

It is an amenable number.

2145162697709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145162697709 is an equidigital number, since it uses as much as digits as its factorization.

2145162697709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 2145162697709 in words is "two trillion, one hundred forty-five billion, one hundred sixty-two million, six hundred ninety-seven thousand, seven hundred nine".