6487680651 has 32 divisors (see below), whose sum is σ = 9116221440. Its totient is φ = 4098535200.

The previous prime is 6487680649. The next prime is 6487680697. The reversal of 6487680651 is 1560867846.

It is not a de Polignac number, because 6487680651 - 2¹ = 6487680649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6487680594 and 6487680603.

It is not an unprimeable number, because it can be changed into a prime (6487680151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1484796 + ... + 1489158.

It is an arithmetic number, because the mean of its divisors is an integer number (284881920).

Almost surely, 2^6487680651 is an apocalyptic number.

6487680651 is a deficient number, since it is larger than the sum of its proper divisors (2628540789).

6487680651 is a wasteful number, since it uses less digits than its factorization.

6487680651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 6487680651 is about 80546.1398888860. The cubic root of 6487680651 is about 1865.0758043589.

The spelling of 6487680651 in words is "six billion, four hundred eighty-seven million, six hundred eighty thousand, six hundred fifty-one".