36445154172021 has 12 divisors (see below), whose sum is σ = 60163429109472. Its totient is φ = 20825802383976.

The previous prime is 36445154172019. The next prime is 36445154172023. The reversal of 36445154172021 is 12027145154463.

It is a happy number.

36445154172021 is a `hidden beast` number, since 3 + 6 + 4 + 4 + 515 + 41 + 72 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (36445154172019) and next prime (36445154172023).

It is not a de Polignac number, because 36445154172021 - 2¹ = 36445154172019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36445154172023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289247255271 + ... + 289247255396.

It is an arithmetic number, because the mean of its divisors is an integer number (5013619092456).

Almost surely, 2^{36445154172021} is an apocalyptic number.

It is an amenable number.

36445154172021 is a deficient number, since it is larger than the sum of its proper divisors (23718274937451).

36445154172021 is a wasteful number, since it uses less digits than its factorization.

36445154172021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578494510680 (or 578494510677 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 36445154172021 in words is "thirty-six trillion, four hundred forty-five billion, one hundred fifty-four million, one hundred seventy-two thousand, twenty-one".