20541538627 has 2 divisors, whose sum is σ = 20541538628. Its totient is φ = 20541538626.

The previous prime is 20541538601. The next prime is 20541538631. The reversal of 20541538627 is 72683514502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20541538627 - 2⁷ = 20541538499 is a prime.

It is not a weakly prime, because it can be changed into another prime (20541538687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270769313 + 10270769314.

It is an arithmetic number, because the mean of its divisors is an integer number (10270769314).

Almost surely, 2^20541538627 is an apocalyptic number.

20541538627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541538627 is an equidigital number, since it uses as much as digits as its factorization.

20541538627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 20541538627 in words is "twenty billion, five hundred forty-one million, five hundred thirty-eight thousand, six hundred twenty-seven".