1444457428601 has 4 divisors (see below), whose sum is σ = 1575771740304. Its totient is φ = 1313143116900.

The previous prime is 1444457428543. The next prime is 1444457428619. The reversal of 1444457428601 is 1068247544441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1444457428601 - 2¹⁸ = 1444457166457 is a prime.

It is a super-2 number, since 2×1444457428601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444457428601.

It is not an unprimeable number, because it can be changed into a prime (1444457428681) 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, 65657155835 + ... + 65657155856.

It is an arithmetic number, because the mean of its divisors is an integer number (393942935076).

Almost surely, 2^{1444457428601} is an apocalyptic number.

1444457428601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1444457428601 is a deficient number, since it is larger than the sum of its proper divisors (131314311703).

1444457428601 is a wasteful number, since it uses less digits than its factorization.

1444457428601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131314311702.

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 1444457428601 in words is "one trillion, four hundred forty-four billion, four hundred fifty-seven million, four hundred twenty-eight thousand, six hundred one".