6441450377 has 4 divisors (see below), whose sum is σ = 6442281600. Its totient is φ = 6440619156.

The previous prime is 6441450373. The next prime is 6441450409. The reversal of 6441450377 is 7730541446.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7730541446 = 2 ⋅3865270723.

It is a cyclic number.

It is not a de Polignac number, because 6441450377 - 2² = 6441450373 is a prime.

It is a super-3 number, since 3×6441450377³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6441450373) 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, 403877 + ... + 419522.

It is an arithmetic number, because the mean of its divisors is an integer number (1610570400).

Almost surely, 2^6441450377 is an apocalyptic number.

It is an amenable number.

6441450377 is a deficient number, since it is larger than the sum of its proper divisors (831223).

6441450377 is an equidigital number, since it uses as much as digits as its factorization.

6441450377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831222.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 6441450377 is about 80258.6467428900. The cubic root of 6441450377 is about 1860.6351529718.

The spelling of 6441450377 in words is "six billion, four hundred forty-one million, four hundred fifty thousand, three hundred seventy-seven".