12177327551 has 2 divisors, whose sum is σ = 12177327552. Its totient is φ = 12177327550.

The previous prime is 12177327521. The next prime is 12177327607. The reversal of 12177327551 is 15572377121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12177327551 - 2¹⁰ = 12177326527 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12177327499 and 12177327508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12177327521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6088663775 + 6088663776.

It is an arithmetic number, because the mean of its divisors is an integer number (6088663776).

Almost surely, 2^12177327551 is an apocalyptic number.

12177327551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12177327551 is an equidigital number, since it uses as much as digits as its factorization.

12177327551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102900, while the sum is 41.

The spelling of 12177327551 in words is "twelve billion, one hundred seventy-seven million, three hundred twenty-seven thousand, five hundred fifty-one".