36521434143 has 20 divisors (see below), whose sum is σ = 56928744048. Its totient is φ = 23289029280.

The previous prime is 36521434121. The next prime is 36521434219. The reversal of 36521434143 is 34143412563.

36521434143 is a `hidden beast` number, since 3 + 65 + 21 + 434 + 143 = 666.

It is not a de Polignac number, because 36521434143 - 2⁹ = 36521433631 is a prime.

It is a super-2 number, since 2×36521434143² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 36521434098 and 36521434107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36526434143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9799918 + ... + 9803643.

Almost surely, 2^36521434143 is an apocalyptic number.

36521434143 is a deficient number, since it is larger than the sum of its proper divisors (20407309905).

36521434143 is a wasteful number, since it uses less digits than its factorization.

36521434143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19603596 (or 19603587 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The spelling of 36521434143 in words is "thirty-six billion, five hundred twenty-one million, four hundred thirty-four thousand, one hundred forty-three".