8474721469 has 2 divisors, whose sum is σ = 8474721470. Its totient is φ = 8474721468.

The previous prime is 8474721467. The next prime is 8474721539. The reversal of 8474721469 is 9641274748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7428198969 + 1046522500 = 86187^2 + 32350^2 .

It is a cyclic number.

It is not a de Polignac number, because 8474721469 - 2¹ = 8474721467 is a prime.

It is a super-2 number, since 2×8474721469² (a number of 21 digits) contains 22 as substring.

Together with 8474721467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8474721461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4237360734 + 4237360735.

It is an arithmetic number, because the mean of its divisors is an integer number (4237360735).

Almost surely, 2^8474721469 is an apocalyptic number.

It is an amenable number.

8474721469 is a deficient number, since it is larger than the sum of its proper divisors (1).

8474721469 is an equidigital number, since it uses as much as digits as its factorization.

8474721469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 52.

The square root of 8474721469 is about 92058.2504124427. The cubic root of 8474721469 is about 2038.8024392629.

The spelling of 8474721469 in words is "eight billion, four hundred seventy-four million, seven hundred twenty-one thousand, four hundred sixty-nine".