20154500027 has 2 divisors, whose sum is σ = 20154500028. Its totient is φ = 20154500026.

The previous prime is 20154499951. The next prime is 20154500033. The reversal of 20154500027 is 72000545102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20154500027 - 2¹² = 20154495931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20154499969 and 20154500005.

It is not a weakly prime, because it can be changed into another prime (20154500227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077250013 + 10077250014.

It is an arithmetic number, because the mean of its divisors is an integer number (10077250014).

Almost surely, 2^20154500027 is an apocalyptic number.

20154500027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154500027 is an equidigital number, since it uses as much as digits as its factorization.

20154500027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The spelling of 20154500027 in words is "twenty billion, one hundred fifty-four million, five hundred thousand, twenty-seven".