536421656513 has 4 divisors (see below), whose sum is σ = 567975871620. Its totient is φ = 504867441408.

The previous prime is 536421656473. The next prime is 536421656593. The reversal of 536421656513 is 315656124635.

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 272459988529 + 263961667984 = 521977^2 + 513772^2 .

It is a cyclic number.

It is not a de Polignac number, because 536421656513 - 2¹⁰ = 536421655489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536421656593) 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, 15777107528 + ... + 15777107561.

It is an arithmetic number, because the mean of its divisors is an integer number (141993967905).

Almost surely, 2^536421656513 is an apocalyptic number.

It is an amenable number.

536421656513 is a deficient number, since it is larger than the sum of its proper divisors (31554215107).

536421656513 is a wasteful number, since it uses less digits than its factorization.

536421656513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31554215106.

The product of its digits is 1944000, while the sum is 47.

The spelling of 536421656513 in words is "five hundred thirty-six billion, four hundred twenty-one million, six hundred fifty-six thousand, five hundred thirteen".