6455464072 has 16 divisors (see below), whose sum is σ = 12228780060. Its totient is φ = 3194456064.

The previous prime is 6455464039. The next prime is 6455464079. The reversal of 6455464072 is 2704645546.

It can be written as a sum of positive squares in 2 ways, for example, as 5755649956 + 699814116 = 75866^2 + 26454^2 .

It is not an unprimeable number, because it can be changed into a prime (6455464079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4158673 + ... + 4160224.

Almost surely, 2^6455464072 is an apocalyptic number.

It is an amenable number.

6455464072 is a deficient number, since it is larger than the sum of its proper divisors (5773315988).

6455464072 is a wasteful number, since it uses less digits than its factorization.

6455464072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319000 (or 8318996 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The square root of 6455464072 is about 80345.9026459968. The cubic root of 6455464072 is about 1861.9834770364.

The spelling of 6455464072 in words is "six billion, four hundred fifty-five million, four hundred sixty-four thousand, seventy-two".