6514454431 has 4 divisors (see below), whose sum is σ = 6514710664. Its totient is φ = 6514198200.

The previous prime is 6514454393. The next prime is 6514454467. The reversal of 6514454431 is 1344544156.

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 6514454431 - 2¹¹ = 6514452383 is a prime.

It is a super-2 number, since 2×6514454431² = 84876233067151067522, which 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 (6514454491) 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, 85185 + ... + 142426.

It is an arithmetic number, because the mean of its divisors is an integer number (1628677666).

Almost surely, 2^6514454431 is an apocalyptic number.

6514454431 is a deficient number, since it is larger than the sum of its proper divisors (256233).

6514454431 is a wasteful number, since it uses less digits than its factorization.

6514454431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256232.

The product of its digits is 115200, while the sum is 37.

The square root of 6514454431 is about 80712.1702780937. The cubic root of 6514454431 is about 1867.6379215556.

Adding to 6514454431 its reverse (1344544156), we get a palindrome (7858998587).

The spelling of 6514454431 in words is "six billion, five hundred fourteen million, four hundred fifty-four thousand, four hundred thirty-one".