4257428761 has 4 divisors (see below), whose sum is σ = 4257593892. Its totient is φ = 4257263632.

The previous prime is 4257428759. The next prime is 4257428797. The reversal of 4257428761 is 1678247524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1995855625 + 2261573136 = 44675^2 + 47556^2 .

It is a cyclic number.

It is not a de Polignac number, because 4257428761 - 2¹ = 4257428759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4257425761) 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, 34606 + ... + 98551.

It is an arithmetic number, because the mean of its divisors is an integer number (1064398473).

Almost surely, 2^4257428761 is an apocalyptic number.

It is an amenable number.

4257428761 is a deficient number, since it is larger than the sum of its proper divisors (165131).

4257428761 is a wasteful number, since it uses less digits than its factorization.

4257428761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165130.

The product of its digits is 752640, while the sum is 46.

The square root of 4257428761 is about 65248.9751720286. The cubic root of 4257428761 is about 1620.7491278240.

The spelling of 4257428761 in words is "four billion, two hundred fifty-seven million, four hundred twenty-eight thousand, seven hundred sixty-one".