348611787509 has 4 divisors (see below), whose sum is σ = 360632883660. Its totient is φ = 336590691360.

The previous prime is 348611787499. The next prime is 348611787581. The reversal of 348611787509 is 905787116843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266942722225 + 81669065284 = 516665^2 + 285778^2 .

It is a cyclic number.

It is not a de Polignac number, because 348611787509 - 2⁸ = 348611787253 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 (348611787809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6010548032 + ... + 6010548089.

It is an arithmetic number, because the mean of its divisors is an integer number (90158220915).

Almost surely, 2^348611787509 is an apocalyptic number.

It is an amenable number.

348611787509 is a deficient number, since it is larger than the sum of its proper divisors (12021096151).

348611787509 is a wasteful number, since it uses less digits than its factorization.

348611787509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021096150.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 348611787509 in words is "three hundred forty-eight billion, six hundred eleven million, seven hundred eighty-seven thousand, five hundred nine".