20534454574 has 8 divisors (see below), whose sum is σ = 30820782600. Its totient is φ = 10260860376.

The previous prime is 20534454553. The next prime is 20534454607. The reversal of 20534454574 is 47545443502.

20534454574 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20534454574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179424 + ... + 3185875.

It is an arithmetic number, because the mean of its divisors is an integer number (3852597825).

Almost surely, 2^20534454574 is an apocalyptic number.

20534454574 is a deficient number, since it is larger than the sum of its proper divisors (10286328026).

20534454574 is a wasteful number, since it uses less digits than its factorization.

20534454574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366914.

The product of its (nonzero) digits is 1344000, while the sum is 43.

The spelling of 20534454574 in words is "twenty billion, five hundred thirty-four million, four hundred fifty-four thousand, five hundred seventy-four".