20876727247 has 2 divisors, whose sum is σ = 20876727248. Its totient is φ = 20876727246.

The previous prime is 20876727173. The next prime is 20876727257. The reversal of 20876727247 is 74272767802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20876727247 - 2¹⁵ = 20876694479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20876727194 and 20876727203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20876727257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10438363623 + 10438363624.

It is an arithmetic number, because the mean of its divisors is an integer number (10438363624).

Almost surely, 2^20876727247 is an apocalyptic number.

20876727247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20876727247 is an equidigital number, since it uses as much as digits as its factorization.

20876727247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3687936, while the sum is 52.

The spelling of 20876727247 in words is "twenty billion, eight hundred seventy-six million, seven hundred twenty-seven thousand, two hundred forty-seven".