4278140257 has 8 divisors (see below), whose sum is σ = 4316691456. Its totient is φ = 4239732432.

The previous prime is 4278140239. The next prime is 4278140303. The reversal of 4278140257 is 7520418724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278140257 - 2¹⁵ = 4278107489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4278140227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24558 + ... + 95704.

It is an arithmetic number, because the mean of its divisors is an integer number (539586432).

Almost surely, 2^4278140257 is an apocalyptic number.

It is an amenable number.

4278140257 is a deficient number, since it is larger than the sum of its proper divisors (38551199).

4278140257 is a wasteful number, since it uses less digits than its factorization.

4278140257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71687.

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 4278140257 is about 65407.4938902264. The cubic root of 4278140257 is about 1623.3730786967.

It can be divided in two parts, 42781 and 40257, that added together give a palindrome (83038).

The spelling of 4278140257 in words is "four billion, two hundred seventy-eight million, one hundred forty thousand, two hundred fifty-seven".