5278546487 has 2 divisors, whose sum is σ = 5278546488. Its totient is φ = 5278546486.

The previous prime is 5278546477. The next prime is 5278546499. The reversal of 5278546487 is 7846458725.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5278546487 - 2⁶ = 5278546423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5278546477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639273243 + 2639273244.

It is an arithmetic number, because the mean of its divisors is an integer number (2639273244).

Almost surely, 2^5278546487 is an apocalyptic number.

5278546487 is a deficient number, since it is larger than the sum of its proper divisors (1).

5278546487 is an equidigital number, since it uses as much as digits as its factorization.

5278546487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15052800, while the sum is 56.

The square root of 5278546487 is about 72653.6061527575. The cubic root of 5278546487 is about 1741.1577364691.

The spelling of 5278546487 in words is "five billion, two hundred seventy-eight million, five hundred forty-six thousand, four hundred eighty-seven".