509054344979 has 2 divisors, whose sum is σ = 509054344980. Its totient is φ = 509054344978.

The previous prime is 509054344963. The next prime is 509054345003. The reversal of 509054344979 is 979443450905.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509054344979 - 2⁴ = 509054344963 is a prime.

It is a super-2 number, since 2×509054344979² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (509054344919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254527172489 + 254527172490.

It is an arithmetic number, because the mean of its divisors is an integer number (254527172490).

Almost surely, 2^509054344979 is an apocalyptic number.

509054344979 is a deficient number, since it is larger than the sum of its proper divisors (1).

509054344979 is an equidigital number, since it uses as much as digits as its factorization.

509054344979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 509054344979 in words is "five hundred nine billion, fifty-four million, three hundred forty-four thousand, nine hundred seventy-nine".