36445643532523 has 4 divisors (see below), whose sum is σ = 36587455375320. Its totient is φ = 36303831689728.

The previous prime is 36445643532509. The next prime is 36445643532533. The reversal of 36445643532523 is 32523534654463.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36445643532523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36445643532533) 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, 70905921013 + ... + 70905921526.

It is an arithmetic number, because the mean of its divisors is an integer number (9146863843830).

Almost surely, 2^{36445643532523} is an apocalyptic number.

36445643532523 is a deficient number, since it is larger than the sum of its proper divisors (141811842797).

36445643532523 is a wasteful number, since it uses less digits than its factorization.

36445643532523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141811842796.

The product of its digits is 93312000, while the sum is 55.

The spelling of 36445643532523 in words is "thirty-six trillion, four hundred forty-five billion, six hundred forty-three million, five hundred thirty-two thousand, five hundred twenty-three".