27207954139 has 2 divisors, whose sum is σ = 27207954140. Its totient is φ = 27207954138.

The previous prime is 27207954049. The next prime is 27207954299. The reversal of 27207954139 is 93145970272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27207954139 - 2⁹ = 27207953627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27207954092 and 27207954101.

It is not a weakly prime, because it can be changed into another prime (27207951139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13603977069 + 13603977070.

It is an arithmetic number, because the mean of its divisors is an integer number (13603977070).

Almost surely, 2^27207954139 is an apocalyptic number.

27207954139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27207954139 is an equidigital number, since it uses as much as digits as its factorization.

27207954139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 27207954139 in words is "twenty-seven billion, two hundred seven million, nine hundred fifty-four thousand, one hundred thirty-nine".