8749229551 has 2 divisors, whose sum is σ = 8749229552. Its totient is φ = 8749229550.

The previous prime is 8749229413. The next prime is 8749229579. The reversal of 8749229551 is 1559229478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8749229551 - 2⁹ = 8749229039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8749229351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374614775 + 4374614776.

It is an arithmetic number, because the mean of its divisors is an integer number (4374614776).

Almost surely, 2^8749229551 is an apocalyptic number.

8749229551 is a deficient number, since it is larger than the sum of its proper divisors (1).

8749229551 is an equidigital number, since it uses as much as digits as its factorization.

8749229551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The square root of 8749229551 is about 93537.3163555594. The cubic root of 8749229551 is about 2060.5821673645.

The spelling of 8749229551 in words is "eight billion, seven hundred forty-nine million, two hundred twenty-nine thousand, five hundred fifty-one".