511990575279979 has 2 divisors, whose sum is σ = 511990575279980. Its totient is φ = 511990575279978.

The previous prime is 511990575279919. The next prime is 511990575280003. The reversal of 511990575279979 is 979972575099115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511990575279979 - 2⁴¹ = 509791552024427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 511990575279896 and 511990575279905.

It is not a weakly prime, because it can be changed into another prime (511990575279919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255995287639989 + 255995287639990.

It is an arithmetic number, because the mean of its divisors is an integer number (255995287639990).

Almost surely, 2^{511990575279979} is an apocalyptic number.

511990575279979 is a deficient number, since it is larger than the sum of its proper divisors (1).

511990575279979 is an equidigital number, since it uses as much as digits as its factorization.

511990575279979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5063451750, while the sum is 85.

The spelling of 511990575279979 in words is "five hundred eleven trillion, nine hundred ninety billion, five hundred seventy-five million, two hundred seventy-nine thousand, nine hundred seventy-nine".