4472649663 has 8 divisors (see below), whose sum is σ = 6314329008. Its totient is φ = 2806368384.

The previous prime is 4472649661. The next prime is 4472649689. The reversal of 4472649663 is 3669462744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4472649663 - 2¹ = 4472649661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 87699013 = 4472649663 / (4 + 4 + 7 + 2 + 6 + 4 + 9 + 6 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4472649661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43849456 + ... + 43849557.

It is an arithmetic number, because the mean of its divisors is an integer number (789291126).

Almost surely, 2^4472649663 is an apocalyptic number.

4472649663 is a deficient number, since it is larger than the sum of its proper divisors (1841679345).

4472649663 is a wasteful number, since it uses less digits than its factorization.

4472649663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87699033.

The product of its digits is 5225472, while the sum is 51.

The square root of 4472649663 is about 66877.8712505116. The cubic root of 4472649663 is about 1647.6120539086.

The spelling of 4472649663 in words is "four billion, four hundred seventy-two million, six hundred forty-nine thousand, six hundred sixty-three".