345663526709 has 8 divisors (see below), whose sum is σ = 347997907800. Its totient is φ = 343329339136.

The previous prime is 345663526669. The next prime is 345663526711. The reversal of 345663526709 is 907625366543.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90111034225 + 255552492484 = 300185^2 + 505522^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345663526709 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 (345663522709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6624329 + ... + 6676305.

It is an arithmetic number, because the mean of its divisors is an integer number (43499738475).

Almost surely, 2^345663526709 is an apocalyptic number.

It is an amenable number.

345663526709 is a deficient number, since it is larger than the sum of its proper divisors (2334381091).

345663526709 is a wasteful number, since it uses less digits than its factorization.

345663526709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96759.

The product of its (nonzero) digits is 24494400, while the sum is 56.

The spelling of 345663526709 in words is "three hundred forty-five billion, six hundred sixty-three million, five hundred twenty-six thousand, seven hundred nine".