6543454415 has 4 divisors (see below), whose sum is σ = 7852145304. Its totient is φ = 5234763528.

The previous prime is 6543454399. The next prime is 6543454427. The reversal of 6543454415 is 5144543456.

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 6543454415 - 2⁴ = 6543454399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654345437 + ... + 654345446.

It is an arithmetic number, because the mean of its divisors is an integer number (1963036326).

Almost surely, 2^6543454415 is an apocalyptic number.

6543454415 is a deficient number, since it is larger than the sum of its proper divisors (1308690889).

6543454415 is a wasteful number, since it uses less digits than its factorization.

6543454415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308690888.

The product of its digits is 576000, while the sum is 41.

The square root of 6543454415 is about 80891.6214140871. The cubic root of 6543454415 is about 1870.4051678144.

The spelling of 6543454415 in words is "six billion, five hundred forty-three million, four hundred fifty-four thousand, four hundred fifteen".