6380651871 has 48 divisors (see below), whose sum is σ = 10751483808. Its totient is φ = 3603456000.

The previous prime is 6380651869. The next prime is 6380651873. The reversal of 6380651871 is 1781560836.

6380651871 is a `hidden beast` number, since 63 + 8 + 0 + 6 + 518 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (6380651869) and next prime (6380651873).

It is not a de Polignac number, because 6380651871 - 2¹ = 6380651869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6380651873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151215 + ... + 188751.

It is an arithmetic number, because the mean of its divisors is an integer number (223989246).

Almost surely, 2^6380651871 is an apocalyptic number.

6380651871 is a deficient number, since it is larger than the sum of its proper divisors (4370831937).

6380651871 is a wasteful number, since it uses less digits than its factorization.

6380651871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37672 (or 37669 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 6380651871 is about 79878.9826612733. The cubic root of 6380651871 is about 1854.7626853047.

It can be divided in two parts, 638065 and 1871, that added together give a palindrome (639936).

The spelling of 6380651871 in words is "six billion, three hundred eighty million, six hundred fifty-one thousand, eight hundred seventy-one".