513960840779 has 2 divisors, whose sum is σ = 513960840780. Its totient is φ = 513960840778.

The previous prime is 513960840703. The next prime is 513960840781. The reversal of 513960840779 is 977048069315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513960840779 - 2²⁸ = 513692405323 is a prime.

It is a super-4 number, since 4×513960840779⁴ (a number of 48 digits) contains 4444 as substring.

Together with 513960840781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513960840479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256980420389 + 256980420390.

It is an arithmetic number, because the mean of its divisors is an integer number (256980420390).

Almost surely, 2^513960840779 is an apocalyptic number.

513960840779 is a deficient number, since it is larger than the sum of its proper divisors (1).

513960840779 is an equidigital number, since it uses as much as digits as its factorization.

513960840779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 513960840779 in words is "five hundred thirteen billion, nine hundred sixty million, eight hundred forty thousand, seven hundred seventy-nine".