6471242497 has 4 divisors (see below), whose sum is σ = 6694388820. Its totient is φ = 6248096176.

The previous prime is 6471242489. The next prime is 6471242507. The reversal of 6471242497 is 7942421746.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2071706256 + 4399536241 = 45516^2 + 66329^2 .

It is a cyclic number.

It is not a de Polignac number, because 6471242497 - 2³ = 6471242489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6471242417) 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, 111573118 + ... + 111573175.

It is an arithmetic number, because the mean of its divisors is an integer number (1673597205).

Almost surely, 2^6471242497 is an apocalyptic number.

It is an amenable number.

6471242497 is a deficient number, since it is larger than the sum of its proper divisors (223146323).

6471242497 is a wasteful number, since it uses less digits than its factorization.

6471242497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223146322.

The product of its digits is 677376, while the sum is 46.

The square root of 6471242497 is about 80444.0333213098. The cubic root of 6471242497 is about 1863.4992608030.

The spelling of 6471242497 in words is "six billion, four hundred seventy-one million, two hundred forty-two thousand, four hundred ninety-seven".