6400450111 has 8 divisors (see below), whose sum is σ = 7144689024. Its totient is φ = 5683274520.

The previous prime is 6400450103. The next prime is 6400450141. The reversal of 6400450111 is 1110540046.

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

It is not a de Polignac number, because 6400450111 - 2³ = 6400450103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400450141) 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, 6765331 + ... + 6766276.

It is an arithmetic number, because the mean of its divisors is an integer number (893086128).

Almost surely, 2^6400450111 is an apocalyptic number.

6400450111 is a deficient number, since it is larger than the sum of its proper divisors (744238913).

6400450111 is a wasteful number, since it uses less digits than its factorization.

6400450111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13531661.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 6400450111 is about 80002.8131442889. The cubic root of 6400450111 is about 1856.6790580538.

Adding to 6400450111 its reverse (1110540046), we get a palindrome (7510990157).

The spelling of 6400450111 in words is "six billion, four hundred million, four hundred fifty thousand, one hundred eleven".