6471240621 has 16 divisors (see below), whose sum is σ = 9202564224. Its totient is φ = 4030744064.

The previous prime is 6471240593. The next prime is 6471240623. The reversal of 6471240621 is 1260421746.

It is not a de Polignac number, because 6471240621 - 2⁹ = 6471240109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6471240623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456105 + ... + 470078.

It is an arithmetic number, because the mean of its divisors is an integer number (575160264).

Almost surely, 2^6471240621 is an apocalyptic number.

It is an amenable number.

6471240621 is a deficient number, since it is larger than the sum of its proper divisors (2731323603).

6471240621 is a wasteful number, since it uses less digits than its factorization.

6471240621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926340.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6471240621 is about 80444.0216610284. The cubic root of 6471240621 is about 1863.4990807281.

The spelling of 6471240621 in words is "six billion, four hundred seventy-one million, two hundred forty thousand, six hundred twenty-one".