4720509742649 has 2 divisors, whose sum is σ = 4720509742650. Its totient is φ = 4720509742648.

The previous prime is 4720509742639. The next prime is 4720509742657. The reversal of 4720509742649 is 9462479050274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4717288612624 + 3221130025 = 2171932^2 + 56755^2 .

It is a cyclic number.

It is not a de Polignac number, because 4720509742649 - 2⁴⁰ = 3620998114873 is a prime.

It is not a weakly prime, because it can be changed into another prime (4720509742639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360254871324 + 2360254871325.

It is an arithmetic number, because the mean of its divisors is an integer number (2360254871325).

Almost surely, 2^{4720509742649} is an apocalyptic number.

It is an amenable number.

4720509742649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4720509742649 is an equidigital number, since it uses as much as digits as its factorization.

4720509742649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 4720509742649 in words is "four trillion, seven hundred twenty billion, five hundred nine million, seven hundred forty-two thousand, six hundred forty-nine".