6451144263 has 32 divisors (see below), whose sum is σ = 9676800000. Its totient is φ = 4247090496.

The previous prime is 6451144211. The next prime is 6451144313. The reversal of 6451144263 is 3624411546.

6451144263 is a `hidden beast` number, since 6 + 451 + 144 + 2 + 63 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6451144263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6451144363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3072388 + ... + 3074486.

It is an arithmetic number, because the mean of its divisors is an integer number (302400000).

Almost surely, 2^6451144263 is an apocalyptic number.

6451144263 is a deficient number, since it is larger than the sum of its proper divisors (3225655737).

6451144263 is a wasteful number, since it uses less digits than its factorization.

6451144263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476 (or 3470 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6451144263 is about 80319.0155753916. The cubic root of 6451144263 is about 1861.5680559452.

The spelling of 6451144263 in words is "six billion, four hundred fifty-one million, one hundred forty-four thousand, two hundred sixty-three".