6459891662 has 64 divisors (see below), whose sum is σ = 12107612160. Its totient is φ = 2522469600.

The previous prime is 6459891611. The next prime is 6459891673. The reversal of 6459891662 is 2661989546.

It is a junction number, because it is equal to n+sod(n) for n = 6459891598 and 6459891607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1374737 + ... + 1379427.

It is an arithmetic number, because the mean of its divisors is an integer number (189181440).

Almost surely, 2^6459891662 is an apocalyptic number.

6459891662 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6459891662 is a deficient number, since it is larger than the sum of its proper divisors (5647720498).

6459891662 is a wasteful number, since it uses less digits than its factorization.

6459891662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917.

The product of its digits is 5598720, while the sum is 56.

The square root of 6459891662 is about 80373.4512261356. The cubic root of 6459891662 is about 1862.4090707796.

The spelling of 6459891662 in words is "six billion, four hundred fifty-nine million, eight hundred ninety-one thousand, six hundred sixty-two".