536434110521 has 4 divisors (see below), whose sum is σ = 554931838500. Its totient is φ = 517936382544.

The previous prime is 536434110491. The next prime is 536434110551. The reversal of 536434110521 is 125011434635.

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

It is an interprime number because it is at equal distance from previous prime (536434110491) and next prime (536434110551).

It can be written as a sum of positive squares in 2 ways, for example, as 179636954896 + 356797155625 = 423836^2 + 597325^2 .

It is a cyclic number.

It is not a de Polignac number, because 536434110521 - 2²⁶ = 536367001657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536434110551) 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, 9248863946 + ... + 9248864003.

It is an arithmetic number, because the mean of its divisors is an integer number (138732959625).

Almost surely, 2^536434110521 is an apocalyptic number.

It is an amenable number.

536434110521 is a deficient number, since it is larger than the sum of its proper divisors (18497727979).

536434110521 is a wasteful number, since it uses less digits than its factorization.

536434110521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18497727978.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 536434110521 in words is "five hundred thirty-six billion, four hundred thirty-four million, one hundred ten thousand, five hundred twenty-one".