6449581762 has 16 divisors (see below), whose sum is σ = 10487558592. Its totient is φ = 2957014800.

The previous prime is 6449581753. The next prime is 6449581807. The reversal of 6449581762 is 2671859446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817468 + ... + 825319.

It is an arithmetic number, because the mean of its divisors is an integer number (655472412).

Almost surely, 2^6449581762 is an apocalyptic number.

6449581762 is a deficient number, since it is larger than the sum of its proper divisors (4037976830).

6449581762 is a wasteful number, since it uses less digits than its factorization.

6449581762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642953.

The product of its digits is 2903040, while the sum is 52.

The square root of 6449581762 is about 80309.2881427796. The cubic root of 6449581762 is about 1861.4177499583.

The spelling of 6449581762 in words is "six billion, four hundred forty-nine million, five hundred eighty-one thousand, seven hundred sixty-two".