6426605871 has 24 divisors (see below), whose sum is σ = 10974830880. Its totient is φ = 3545712576.

The previous prime is 6426605851. The next prime is 6426605879. The reversal of 6426605871 is 1785066246.

6426605871 is a `hidden beast` number, since 6 + 4 + 2 + 6 + 60 + 587 + 1 = 666.

It is not a de Polignac number, because 6426605871 - 2¹³ = 6426597679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426605879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1756960 + ... + 1760613.

It is an arithmetic number, because the mean of its divisors is an integer number (457284620).

Almost surely, 2^6426605871 is an apocalyptic number.

6426605871 is a deficient number, since it is larger than the sum of its proper divisors (4548225009).

6426605871 is a wasteful number, since it uses less digits than its factorization.

6426605871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517615 (or 3517612 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6426605871 is about 80166.1142316378. The cubic root of 6426605871 is about 1859.2047580314.

The spelling of 6426605871 in words is "six billion, four hundred twenty-six million, six hundred five thousand, eight hundred seventy-one".