4251342664 has 8 divisors (see below), whose sum is σ = 7971267510. Its totient is φ = 2125671328.

The previous prime is 4251342647. The next prime is 4251342673. The reversal of 4251342664 is 4662431524.

It can be written as a sum of positive squares in only one way, i.e., 4202928900 + 48413764 = 64830^2 + 6958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265708909 + ... + 265708924.

Almost surely, 2^4251342664 is an apocalyptic number.

It is an amenable number.

4251342664 is a deficient number, since it is larger than the sum of its proper divisors (3719924846).

4251342664 is a wasteful number, since it uses less digits than its factorization.

4251342664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531417839 (or 531417835 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 4251342664 is about 65202.3210016331. The cubic root of 4251342664 is about 1619.9764595472.

The spelling of 4251342664 in words is "four billion, two hundred fifty-one million, three hundred forty-two thousand, six hundred sixty-four".