511101105979 has 4 divisors (see below), whose sum is σ = 511821982720. Its totient is φ = 510380229240.

The previous prime is 511101105961. The next prime is 511101106003. The reversal of 511101105979 is 979501101115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511101105979 - 2⁵ = 511101105947 is a prime.

It is a super-2 number, since 2×511101105979² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511101102979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360437307 + ... + 360438724.

It is an arithmetic number, because the mean of its divisors is an integer number (127955495680).

Almost surely, 2^511101105979 is an apocalyptic number.

511101105979 is a deficient number, since it is larger than the sum of its proper divisors (720876741).

511101105979 is an equidigital number, since it uses as much as digits as its factorization.

511101105979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720876740.

The product of its (nonzero) digits is 14175, while the sum is 40.

The spelling of 511101105979 in words is "five hundred eleven billion, one hundred one million, one hundred five thousand, nine hundred seventy-nine".