6477543497 has 4 divisors (see below), whose sum is σ = 6568776576. Its totient is φ = 6386310420.

The previous prime is 6477543493. The next prime is 6477543539. The reversal of 6477543497 is 7943457746.

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.

It is a cyclic number.

It is not a de Polignac number, because 6477543497 - 2² = 6477543493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6477543493) 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, 45616433 + ... + 45616574.

It is an arithmetic number, because the mean of its divisors is an integer number (1642194144).

Almost surely, 2^6477543497 is an apocalyptic number.

It is an amenable number.

6477543497 is a deficient number, since it is larger than the sum of its proper divisors (91233079).

6477543497 is an equidigital number, since it uses as much as digits as its factorization.

6477543497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91233078.

The product of its digits is 17781120, while the sum is 56.

The square root of 6477543497 is about 80483.1876667419. The cubic root of 6477543497 is about 1864.1038896619.

The spelling of 6477543497 in words is "six billion, four hundred seventy-seven million, five hundred forty-three thousand, four hundred ninety-seven".