36458452244021 has 4 divisors (see below), whose sum is σ = 36458472685152. Its totient is φ = 36458431802892.

The previous prime is 36458452244009. The next prime is 36458452244029. The reversal of 36458452244021 is 12044225485463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36458452244021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36458452244029) 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, 7259171 + ... + 11207696.

It is an arithmetic number, because the mean of its divisors is an integer number (9114618171288).

Almost surely, 2^{36458452244021} is an apocalyptic number.

It is an amenable number.

36458452244021 is a deficient number, since it is larger than the sum of its proper divisors (20441131).

36458452244021 is a wasteful number, since it uses less digits than its factorization.

36458452244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441130.

The product of its (nonzero) digits is 7372800, while the sum is 50.

The spelling of 36458452244021 in words is "thirty-six trillion, four hundred fifty-eight billion, four hundred fifty-two million, two hundred forty-four thousand, twenty-one".