214969486657 has 8 divisors (see below), whose sum is σ = 227874304296. Its totient is φ = 202093508352.

The previous prime is 214969486649. The next prime is 214969486769. The reversal of 214969486657 is 756684969412.

It can be written as a sum of positive squares in 4 ways, for example, as 151349009296 + 63620477361 = 389036^2 + 252231^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 214969486657 - 2³ = 214969486649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214969486592 and 214969486601.

It is not an unprimeable number, because it can be changed into a prime (214969486357) 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, 7194478 + ... + 7224295.

It is an arithmetic number, because the mean of its divisors is an integer number (28484288037).

Almost surely, 2^214969486657 is an apocalyptic number.

It is an amenable number.

214969486657 is a deficient number, since it is larger than the sum of its proper divisors (12904817639).

214969486657 is a wasteful number, since it uses less digits than its factorization.

214969486657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14419667.

The product of its digits is 156764160, while the sum is 67.

The spelling of 214969486657 in words is "two hundred fourteen billion, nine hundred sixty-nine million, four hundred eighty-six thousand, six hundred fifty-seven".