6471242506 has 4 divisors (see below), whose sum is σ = 9706863762. Its totient is φ = 3235621252.

The previous prime is 6471242489. The next prime is 6471242507. The reversal of 6471242506 is 6052421746.

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

It can be written as a sum of positive squares in only one way, i.e., 5840780625 + 630461881 = 76425^2 + 25109^2 .

It is a super-2 number, since 2×6471242506² = 83753959142922320072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6471242507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617810625 + ... + 1617810628.

Almost surely, 2^6471242506 is an apocalyptic number.

6471242506 is a deficient number, since it is larger than the sum of its proper divisors (3235621256).

6471242506 is a wasteful number, since it uses less digits than its factorization.

6471242506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235621255.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 6471242506 is about 80444.0333772493. The cubic root of 6471242506 is about 1863.4992616669.

The spelling of 6471242506 in words is "six billion, four hundred seventy-one million, two hundred forty-two thousand, five hundred six".