4278538257355 has 16 divisors (see below), whose sum is σ = 5165909267904. Its totient is φ = 3401728997760.

The previous prime is 4278538257307. The next prime is 4278538257373. The reversal of 4278538257355 is 5537528358724.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4278538257355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4267045 + ... + 5173465.

It is an arithmetic number, because the mean of its divisors is an integer number (322869329244).

Almost surely, 2^{4278538257355} is an apocalyptic number.

4278538257355 is a deficient number, since it is larger than the sum of its proper divisors (887371010549).

4278538257355 is a wasteful number, since it uses less digits than its factorization.

4278538257355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912246.

The product of its digits is 282240000, while the sum is 64.

The spelling of 4278538257355 in words is "four trillion, two hundred seventy-eight billion, five hundred thirty-eight million, two hundred fifty-seven thousand, three hundred fifty-five".