4454472661 has 4 divisors (see below), whose sum is σ = 4574863852. Its totient is φ = 4334081472.

The previous prime is 4454472647. The next prime is 4454472667. The reversal of 4454472661 is 1662744544.

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 1575613636 + 2878859025 = 39694^2 + 53655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4454472661 - 2¹⁵ = 4454439893 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 (4454472667) 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, 60195540 + ... + 60195613.

It is an arithmetic number, because the mean of its divisors is an integer number (1143715963).

Almost surely, 2^4454472661 is an apocalyptic number.

It is an amenable number.

4454472661 is a deficient number, since it is larger than the sum of its proper divisors (120391191).

4454472661 is a wasteful number, since it uses less digits than its factorization.

4454472661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120391190.

The product of its digits is 645120, while the sum is 43.

The square root of 4454472661 is about 66741.8359127167. The cubic root of 4454472661 is about 1645.3770394328.

The spelling of 4454472661 in words is "four billion, four hundred fifty-four million, four hundred seventy-two thousand, six hundred sixty-one".