2173490750737 has 2 divisors, whose sum is σ = 2173490750738. Its totient is φ = 2173490750736.

The previous prime is 2173490750713. The next prime is 2173490750831. The reversal of 2173490750737 is 7370570943712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1794852357841 + 378638392896 = 1339721^2 + 615336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173490750737 - 2⁷ = 2173490750609 is a prime.

It is not a weakly prime, because it can be changed into another prime (2173490750537) 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, 1086745375368 + 1086745375369.

It is an arithmetic number, because the mean of its divisors is an integer number (1086745375369).

Almost surely, 2^{2173490750737} is an apocalyptic number.

It is an amenable number.

2173490750737 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173490750737 is an equidigital number, since it uses as much as digits as its factorization.

2173490750737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7779240, while the sum is 55.

The spelling of 2173490750737 in words is "two trillion, one hundred seventy-three billion, four hundred ninety million, seven hundred fifty thousand, seven hundred thirty-seven".