6401458111 has 4 divisors (see below), whose sum is σ = 6489149392. Its totient is φ = 6313766832.

The previous prime is 6401458081. The next prime is 6401458177. The reversal of 6401458111 is 1118541046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6401458111 - 2⁵ = 6401458079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401458211) 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, 43845531 + ... + 43845676.

It is an arithmetic number, because the mean of its divisors is an integer number (1622287348).

Almost surely, 2^6401458111 is an apocalyptic number.

6401458111 is a deficient number, since it is larger than the sum of its proper divisors (87691281).

6401458111 is an equidigital number, since it uses as much as digits as its factorization.

6401458111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87691280.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 6401458111 is about 80009.1126747447. The cubic root of 6401458111 is about 1856.7765217330.

Adding to 6401458111 its reverse (1118541046), we get a palindrome (7519999157).

The spelling of 6401458111 in words is "six billion, four hundred one million, four hundred fifty-eight thousand, one hundred eleven".