2150747723917 has 6 divisors (see below), whose sum is σ = 2328916174602. Its totient is φ = 1985305591152.

The previous prime is 2150747723911. The next prime is 2150747723921. The reversal of 2150747723917 is 7193277470512.

It can be written as a sum of positive squares in 3 ways, for example, as 10317277476 + 2140430446441 = 101574^2 + 1463021^2 .

It is not a de Polignac number, because 2150747723917 - 2³ = 2150747723909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150747723911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6363158778 + ... + 6363159115.

It is an arithmetic number, because the mean of its divisors is an integer number (388152695767).

Almost surely, 2^{2150747723917} is an apocalyptic number.

It is an amenable number.

2150747723917 is a deficient number, since it is larger than the sum of its proper divisors (178168450685).

2150747723917 is a wasteful number, since it uses less digits than its factorization.

2150747723917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12726317919 (or 12726317906 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 55.

The spelling of 2150747723917 in words is "two trillion, one hundred fifty billion, seven hundred forty-seven million, seven hundred twenty-three thousand, nine hundred seventeen".