4512978756 has 72 divisors (see below), whose sum is σ = 13402194624. Its totient is φ = 1262370240.

The previous prime is 4512978749. The next prime is 4512978761. The reversal of 4512978756 is 6578792154.

4512978756 is a `hidden beast` number, since 4 + 512 + 9 + 78 + 7 + 56 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433176 + ... + 443471.

It is an arithmetic number, because the mean of its divisors is an integer number (186141592).

Almost surely, 2^4512978756 is an apocalyptic number.

It is an amenable number.

4512978756 is an abundant number, since it is smaller than the sum of its proper divisors (8889215868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4512978756 is a wasteful number, since it uses less digits than its factorization.

4512978756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876681 (or 876676 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 4512978756 is about 67178.7076088845. The cubic root of 4512978756 is about 1652.5493197707.

The spelling of 4512978756 in words is "four billion, five hundred twelve million, nine hundred seventy-eight thousand, seven hundred fifty-six".