348490689561 has 27 divisors (see below), whose sum is σ = 585580016853. Its totient is φ = 199130452920.

The previous prime is 348490689523. The next prime is 348490689577. The reversal of 348490689561 is 165986094843.

The square root of 348490689561 is 590331.

It is a perfect power (a square), and thus also a powerful number.

348490689561 is a `hidden beast` number, since 3 + 4 + 8 + 4 + 9 + 0 + 68 + 9 + 561 = 666.

It is not a de Polignac number, because 348490689561 - 2¹³ = 348490681369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (348490689361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12382896 + ... + 12411006.

Almost surely, 2^348490689561 is an apocalyptic number.

348490689561 is the 590331-st square number.

348490689561 is the 295166-th centered octagonal number.

It is an amenable number.

348490689561 is a deficient number, since it is larger than the sum of its proper divisors (237089327292).

348490689561 is an frugal number, since it uses more digits than its factorization.

348490689561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56242 (or 28121 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 348490689561 in words is "three hundred forty-eight billion, four hundred ninety million, six hundred eighty-nine thousand, five hundred sixty-one".