20573908743744 has 84 divisors (see below), whose sum is σ = 59851564862544. Its totient is φ = 6755611813632.

The previous prime is 20573908743743. The next prime is 20573908743749. The reversal of 20573908743744 is 44734780937502.

20573908743744 is a `hidden beast` number, since 2 + 0 + 5 + 73 + 90 + 8 + 7 + 437 + 44 = 666.

It is not an unprimeable number, because it can be changed into a prime (20573908743743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266518062 + ... + 266595245.

It is an arithmetic number, because the mean of its divisors is an integer number (712518629316).

Almost surely, 2^{20573908743744} is an apocalyptic number.

20573908743744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20573908743744 is an abundant number, since it is smaller than the sum of its proper divisors (39277656118800).

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

20573908743744 is a wasteful number, since it uses less digits than its factorization.

20573908743744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533113392 (or 533113379 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 63.

The spelling of 20573908743744 in words is "twenty trillion, five hundred seventy-three billion, nine hundred eight million, seven hundred forty-three thousand, seven hundred forty-four".