213454527669 has 32 divisors (see below), whose sum is σ = 323631158400. Its totient is φ = 138973000320.

The previous prime is 213454527653. The next prime is 213454527683. The reversal of 213454527669 is 966725454312.

It is a happy number.

213454527669 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 54 + 527 + 6 + 69 = 666.

It is not a de Polignac number, because 213454527669 - 2⁴ = 213454527653 is a prime.

It is a super-2 number, since 2×213454527669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213454527269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13971967 + ... + 13987235.

It is an arithmetic number, because the mean of its divisors is an integer number (10113473700).

Almost surely, 2^213454527669 is an apocalyptic number.

It is an amenable number.

213454527669 is a deficient number, since it is larger than the sum of its proper divisors (110176630731).

213454527669 is a wasteful number, since it uses less digits than its factorization.

213454527669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27362 (or 27356 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 213454527669 in words is "two hundred thirteen billion, four hundred fifty-four million, five hundred twenty-seven thousand, six hundred sixty-nine".