6499860481 has 8 divisors (see below), whose sum is σ = 6721346304. Its totient is φ = 6282035760.

The previous prime is 6499860473. The next prime is 6499860511. The reversal of 6499860481 is 1840689946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6499860481 - 2³ = 6499860473 is a prime.

It is a super-2 number, since 2×6499860481² = 84496372544931102722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6499860431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911665 + ... + 918766.

It is an arithmetic number, because the mean of its divisors is an integer number (840168288).

It is a Proth number, since it is equal to 24795 ⋅ 2¹⁸ + 1 and 24795 < 2¹⁸.

Almost surely, 2^6499860481 is an apocalyptic number.

It is an amenable number.

6499860481 is a deficient number, since it is larger than the sum of its proper divisors (221485823).

6499860481 is a wasteful number, since it uses less digits than its factorization.

6499860481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830551.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 6499860481 is about 80621.7122182356. The cubic root of 6499860481 is about 1866.2422255894.

The spelling of 6499860481 in words is "six billion, four hundred ninety-nine million, eight hundred sixty thousand, four hundred eighty-one".