27705963453 has 16 divisors (see below), whose sum is σ = 42430771200. Its totient is φ = 15752419056.

The previous prime is 27705963449. The next prime is 27705963463. The reversal of 27705963453 is 35436950772.

It is not a de Polignac number, because 27705963453 - 2² = 27705963449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27705963396 and 27705963405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27705963463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3310725 + ... + 3319082.

It is an arithmetic number, because the mean of its divisors is an integer number (2651923200).

Almost surely, 2^27705963453 is an apocalyptic number.

It is an amenable number.

27705963453 is a deficient number, since it is larger than the sum of its proper divisors (14724807747).

27705963453 is a wasteful number, since it uses less digits than its factorization.

27705963453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630016.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 27705963453 in words is "twenty-seven billion, seven hundred five million, nine hundred sixty-three thousand, four hundred fifty-three".