2347240947509 has 2 divisors, whose sum is σ = 2347240947510. Its totient is φ = 2347240947508.

The previous prime is 2347240947463. The next prime is 2347240947517. The reversal of 2347240947509 is 9057490427432.

2347240947509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1207691102500 + 1139549845009 = 1098950^2 + 1067497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2347240947509 - 2¹² = 2347240943413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2347240947409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1173620473754 + 1173620473755.

It is an arithmetic number, because the mean of its divisors is an integer number (1173620473755).

Almost surely, 2^{2347240947509} is an apocalyptic number.

It is an amenable number.

2347240947509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2347240947509 is an equidigital number, since it uses as much as digits as its factorization.

2347240947509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 56.

The spelling of 2347240947509 in words is "two trillion, three hundred forty-seven billion, two hundred forty million, nine hundred forty-seven thousand, five hundred nine".