511679583977 has 2 divisors, whose sum is σ = 511679583978. Its totient is φ = 511679583976.

The previous prime is 511679583911. The next prime is 511679583983. The reversal of 511679583977 is 779385976115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488306066521 + 23373517456 = 698789^2 + 152884^2 .

It is a cyclic number.

It is not a de Polignac number, because 511679583977 - 2³² = 507384616681 is a prime.

It is not a weakly prime, because it can be changed into another prime (511679583577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255839791988 + 255839791989.

It is an arithmetic number, because the mean of its divisors is an integer number (255839791989).

Almost surely, 2^511679583977 is an apocalyptic number.

It is an amenable number.

511679583977 is a deficient number, since it is larger than the sum of its proper divisors (1).

511679583977 is an equidigital number, since it uses as much as digits as its factorization.

511679583977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100018800, while the sum is 68.

The spelling of 511679583977 in words is "five hundred eleven billion, six hundred seventy-nine million, five hundred eighty-three thousand, nine hundred seventy-seven".