27853432469 has 8 divisors (see below), whose sum is σ = 29074485120. Its totient is φ = 26633216016.

The previous prime is 27853432463. The next prime is 27853432487. The reversal of 27853432469 is 96423435872.

It is a happy number.

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 27853432469 - 2¹² = 27853428373 is a prime.

It is a super-2 number, since 2×27853432469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27853432469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27853432463) 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, 140489 + ... + 274670.

It is an arithmetic number, because the mean of its divisors is an integer number (3634310640).

Almost surely, 2^27853432469 is an apocalyptic number.

It is an amenable number.

27853432469 is a deficient number, since it is larger than the sum of its proper divisors (1221052651).

27853432469 is a wasteful number, since it uses less digits than its factorization.

27853432469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418099.

The product of its digits is 8709120, while the sum is 53.

The spelling of 27853432469 in words is "twenty-seven billion, eight hundred fifty-three million, four hundred thirty-two thousand, four hundred sixty-nine".