348655521069 has 14 divisors (see below), whose sum is σ = 522744149966. Its totient is φ = 232437013560.

The previous prime is 348655521043. The next prime is 348655521143. The reversal of 348655521069 is 960125556843.

348655521069 is a `hidden beast` number, since 3 + 4 + 8 + 6 + 55 + 521 + 0 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 344862562500 + 3792958569 = 587250^2 + 61587^2 .

It is not a de Polignac number, because 348655521069 - 2¹⁵ = 348655488301 is a prime.

It is a super-2 number, since 2×348655521069² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348655520069) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 239132002 + ... + 239133459.

Almost surely, 2^348655521069 is an apocalyptic number.

It is an amenable number.

348655521069 is a deficient number, since it is larger than the sum of its proper divisors (174088628897).

348655521069 is an frugal number, since it uses more digits than its factorization.

348655521069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478265479 (or 478265464 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 348655521069 in words is "three hundred forty-eight billion, six hundred fifty-five million, five hundred twenty-one thousand, sixty-nine".