4251978736 has 10 divisors (see below), whose sum is σ = 8238208832. Its totient is φ = 2125989360.

The previous prime is 4251978721. The next prime is 4251978737. The reversal of 4251978736 is 6378791524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251978737) by changing a digit.

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 as a sum of consecutive naturals, namely, 132874320 + ... + 132874351.

Almost surely, 2^4251978736 is an apocalyptic number.

It is an amenable number.

4251978736 is a deficient number, since it is larger than the sum of its proper divisors (3986230096).

4251978736 is a wasteful number, since it uses less digits than its factorization.

4251978736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265748679 (or 265748673 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The square root of 4251978736 is about 65207.1984983253. The cubic root of 4251978736 is about 1620.0572473800.

The spelling of 4251978736 in words is "four billion, two hundred fifty-one million, nine hundred seventy-eight thousand, seven hundred thirty-six".