1446781438223 has 16 divisors (see below), whose sum is σ = 1595301384096. Its totient is φ = 1301106186240.

The previous prime is 1446781438213. The next prime is 1446781438261. The reversal of 1446781438223 is 3228341876441.

It is a cyclic number.

It is not a de Polignac number, because 1446781438223 - 2⁶ = 1446781438159 is a prime.

It is a super-2 number, since 2×1446781438223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1446781438213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054915 + ... + 2667627.

It is an arithmetic number, because the mean of its divisors is an integer number (99706336506).

Almost surely, 2^{1446781438223} is an apocalyptic number.

1446781438223 is a deficient number, since it is larger than the sum of its proper divisors (148519945873).

1446781438223 is a wasteful number, since it uses less digits than its factorization.

1446781438223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615034.

The product of its digits is 6193152, while the sum is 53.

The spelling of 1446781438223 in words is "one trillion, four hundred forty-six billion, seven hundred eighty-one million, four hundred thirty-eight thousand, two hundred twenty-three".