4455383850721 has 4 divisors (see below), whose sum is σ = 4481137514772. Its totient is φ = 4429630186672.

The previous prime is 4455383850653. The next prime is 4455383850767. The reversal of 4455383850721 is 1270583835544.

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 2968508460096 + 1486875390625 = 1722936^2 + 1219375^2 .

It is a cyclic number.

It is not a de Polignac number, because 4455383850721 - 2¹³ = 4455383842529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4455383860721) 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, 12876831766 + ... + 12876832111.

It is an arithmetic number, because the mean of its divisors is an integer number (1120284378693).

Almost surely, 2^{4455383850721} is an apocalyptic number.

It is an amenable number.

4455383850721 is a deficient number, since it is larger than the sum of its proper divisors (25753664051).

4455383850721 is a wasteful number, since it uses less digits than its factorization.

4455383850721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25753664050.

The product of its (nonzero) digits is 16128000, while the sum is 55.

The spelling of 4455383850721 in words is "four trillion, four hundred fifty-five billion, three hundred eighty-three million, eight hundred fifty thousand, seven hundred twenty-one".