514120769821 has 4 divisors (see below), whose sum is σ = 514154884572. Its totient is φ = 514086655072.

The previous prime is 514120769809. The next prime is 514120769843. The reversal of 514120769821 is 128967021415.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111766519225 + 402354250596 = 334315^2 + 634314^2 .

It is a cyclic number.

It is not a de Polignac number, because 514120769821 - 2¹⁷ = 514120638749 is a prime.

It is a super-2 number, since 2×514120769821² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514120769881) 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, 17034760 + ... + 17064913.

It is an arithmetic number, because the mean of its divisors is an integer number (128538721143).

Almost surely, 2^514120769821 is an apocalyptic number.

It is an amenable number.

514120769821 is a deficient number, since it is larger than the sum of its proper divisors (34114751).

514120769821 is a wasteful number, since it uses less digits than its factorization.

514120769821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34114750.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 514120769821 in words is "five hundred fourteen billion, one hundred twenty million, seven hundred sixty-nine thousand, eight hundred twenty-one".