4878354491 has 2 divisors, whose sum is σ = 4878354492. Its totient is φ = 4878354490.

The previous prime is 4878354449. The next prime is 4878354511. The reversal of 4878354491 is 1944538784.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4878354491 is a prime.

It is a super-4 number, since 4×4878354491⁴ (a number of 40 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (4878354421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439177245 + 2439177246.

It is an arithmetic number, because the mean of its divisors is an integer number (2439177246).

Almost surely, 2^4878354491 is an apocalyptic number.

4878354491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878354491 is an equidigital number, since it uses as much as digits as its factorization.

4878354491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 53.

The square root of 4878354491 is about 69845.2180968747. The cubic root of 4878354491 is about 1695.9945481749.

The spelling of 4878354491 in words is "four billion, eight hundred seventy-eight million, three hundred fifty-four thousand, four hundred ninety-one".