20004356627573 has 2 divisors, whose sum is σ = 20004356627574. Its totient is φ = 20004356627572.

The previous prime is 20004356627543. The next prime is 20004356627627. The reversal of 20004356627573 is 37572665340002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11889931519684 + 8114425107889 = 3448178^2 + 2848583^2 .

It is a cyclic number.

It is not a de Polignac number, because 20004356627573 - 2⁶ = 20004356627509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20004356627503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002178313786 + 10002178313787.

It is an arithmetic number, because the mean of its divisors is an integer number (10002178313787).

Almost surely, 2^{20004356627573} is an apocalyptic number.

It is an amenable number.

20004356627573 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004356627573 is an equidigital number, since it uses as much as digits as its factorization.

20004356627573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 50.

The spelling of 20004356627573 in words is "twenty trillion, four billion, three hundred fifty-six million, six hundred twenty-seven thousand, five hundred seventy-three".