27523718453 has 16 divisors (see below), whose sum is σ = 35807256576. Its totient is φ = 20514571440.

The previous prime is 27523718449. The next prime is 27523718461. The reversal of 27523718453 is 35481732572.

It is not a de Polignac number, because 27523718453 - 2² = 27523718449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27523718398 and 27523718407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27523718473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7768901 + ... + 7772442.

It is an arithmetic number, because the mean of its divisors is an integer number (2237953536).

Almost surely, 2^27523718453 is an apocalyptic number.

27523718453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27523718453 is a deficient number, since it is larger than the sum of its proper divisors (8283538123).

27523718453 is a wasteful number, since it uses less digits than its factorization.

27523718453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541384.

The product of its digits is 1411200, while the sum is 47.

The spelling of 27523718453 in words is "twenty-seven billion, five hundred twenty-three million, seven hundred eighteen thousand, four hundred fifty-three".