20573281563474 has 8 divisors (see below), whose sum is σ = 41146563126960. Its totient is φ = 6857760521156.

The previous prime is 20573281563469. The next prime is 20573281563491. The reversal of 20573281563474 is 47436518237502.

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

20573281563474 is an admirable 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, 1714440130284 + ... + 1714440130295.

It is an arithmetic number, because the mean of its divisors is an integer number (5143320390870).

Almost surely, 2^{20573281563474} is an apocalyptic number.

20573281563474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20573281563474 is a wasteful number, since it uses less digits than its factorization.

20573281563474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428880260584.

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 20573281563474 in words is "twenty trillion, five hundred seventy-three billion, two hundred eighty-one million, five hundred sixty-three thousand, four hundred seventy-four".