36291544321 has 4 divisors (see below), whose sum is σ = 36650866644. Its totient is φ = 35932222000.

The previous prime is 36291544319. The next prime is 36291544381. The reversal of 36291544321 is 12344519263.

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 28169929921 + 8121614400 = 167839^2 + 90120^2 .

It is a cyclic number.

It is not a de Polignac number, because 36291544321 - 2¹ = 36291544319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36291544381) 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, 179661010 + ... + 179661211.

It is an arithmetic number, because the mean of its divisors is an integer number (9162716661).

Almost surely, 2^36291544321 is an apocalyptic number.

It is an amenable number.

36291544321 is a deficient number, since it is larger than the sum of its proper divisors (359322323).

36291544321 is a wasteful number, since it uses less digits than its factorization.

36291544321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359322322.

The product of its digits is 155520, while the sum is 40.

The spelling of 36291544321 in words is "thirty-six billion, two hundred ninety-one million, five hundred forty-four thousand, three hundred twenty-one".