4251706164 has 18 divisors (see below), whose sum is σ = 10747368450. Its totient is φ = 1417235376.

The previous prime is 4251706139. The next prime is 4251706169. The reversal of 4251706164 is 4616071524.

4251706164 is a `hidden beast` number, since 4 + 25 + 17 + 0 + 616 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2293643664 + 1958062500 = 47892^2 + 44250^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 118102949 = 4251706164 / (4 + 2 + 5 + 1 + 7 + 0 + 6 + 1 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251706169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59051439 + ... + 59051510.

It is an arithmetic number, because the mean of its divisors is an integer number (597076025).

Almost surely, 2^4251706164 is an apocalyptic number.

It is an amenable number.

4251706164 is an abundant number, since it is smaller than the sum of its proper divisors (6495662286).

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

4251706164 is a wasteful number, since it uses less digits than its factorization.

4251706164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118102959 (or 118102954 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4251706164 is about 65205.1084195096. The cubic root of 4251706164 is about 1620.0226288563.

Adding to 4251706164 its reverse (4616071524), we get a palindrome (8867777688).

The spelling of 4251706164 in words is "four billion, two hundred fifty-one million, seven hundred six thousand, one hundred sixty-four".