20454052454 has 32 divisors (see below), whose sum is σ = 34128078624. Its totient is φ = 9114842880.

The previous prime is 20454052439. The next prime is 20454052459. The reversal of 20454052454 is 45425045402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454052459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1688162 + ... + 1700234.

It is an arithmetic number, because the mean of its divisors is an integer number (1066502457).

Almost surely, 2^20454052454 is an apocalyptic number.

20454052454 is a deficient number, since it is larger than the sum of its proper divisors (13674026170).

20454052454 is a wasteful number, since it uses less digits than its factorization.

20454052454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592.

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 20454052454 its reverse (45425045402), we get a palindrome (65879097856).

The spelling of 20454052454 in words is "twenty billion, four hundred fifty-four million, fifty-two thousand, four hundred fifty-four".