8451641349 has 6 divisors (see below), whose sum is σ = 12207926406. Its totient is φ = 5634427560.

The previous prime is 8451641333. The next prime is 8451641353. The reversal of 8451641349 is 9431461548.

8451641349 is a `hidden beast` number, since 8 + 451 + 64 + 134 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6370913124 + 2080728225 = 79818^2 + 45615^2 .

It is not a de Polignac number, because 8451641349 - 2⁴ = 8451641333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451641309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469535622 + ... + 469535639.

It is an arithmetic number, because the mean of its divisors is an integer number (2034654401).

Almost surely, 2^8451641349 is an apocalyptic number.

It is an amenable number.

8451641349 is a deficient number, since it is larger than the sum of its proper divisors (3756285057).

8451641349 is a wasteful number, since it uses less digits than its factorization.

8451641349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939071267 (or 939071264 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 8451641349 is about 91932.8088823571. The cubic root of 8451641349 is about 2036.9499265774.

The spelling of 8451641349 in words is "eight billion, four hundred fifty-one million, six hundred forty-one thousand, three hundred forty-nine".