5278972987 has 2 divisors, whose sum is σ = 5278972988. Its totient is φ = 5278972986.

The previous prime is 5278972973. The next prime is 5278973003. The reversal of 5278972987 is 7892798725.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5278972987 - 2⁷ = 5278972859 is a prime.

It is not a weakly prime, because it can be changed into another prime (5278972187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639486493 + 2639486494.

It is an arithmetic number, because the mean of its divisors is an integer number (2639486494).

Almost surely, 2^5278972987 is an apocalyptic number.

5278972987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5278972987 is an equidigital number, since it uses as much as digits as its factorization.

5278972987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35562240, while the sum is 64.

The square root of 5278972987 is about 72656.5412540399. The cubic root of 5278972987 is about 1741.2046296670.

The spelling of 5278972987 in words is "five billion, two hundred seventy-eight million, nine hundred seventy-two thousand, nine hundred eighty-seven".