5120801977 has 2 divisors, whose sum is σ = 5120801978. Its totient is φ = 5120801976.

The previous prime is 5120801971. The next prime is 5120802023. The reversal of 5120801977 is 7791080215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4197614521 + 923187456 = 64789^2 + 30384^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120801977 - 2¹⁵ = 5120769209 is a prime.

It is a super-2 number, since 2×5120801977² = 52445225775294217058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5120801971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560400988 + 2560400989.

It is an arithmetic number, because the mean of its divisors is an integer number (2560400989).

Almost surely, 2^5120801977 is an apocalyptic number.

It is an amenable number.

5120801977 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120801977 is an equidigital number, since it uses as much as digits as its factorization.

5120801977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 5120801977 is about 71559.7790452151. The cubic root of 5120801977 is about 1723.6377372789.

The spelling of 5120801977 in words is "five billion, one hundred twenty million, eight hundred one thousand, nine hundred seventy-seven".