6499582940 has 24 divisors (see below), whose sum is σ = 13872882912. Its totient is φ = 2557212480.

The previous prime is 6499582939. The next prime is 6499582963. The reversal of 6499582940 is 492859946.

It is a happy number.

It is a congruent number.

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, 2662544 + ... + 2664983.

It is an arithmetic number, because the mean of its divisors is an integer number (578036788).

Almost surely, 2^6499582940 is an apocalyptic number.

It is an amenable number.

6499582940 is an abundant number, since it is smaller than the sum of its proper divisors (7373299972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6499582940 is a wasteful number, since it uses less digits than its factorization.

6499582940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327597 (or 5327595 counting only the distinct ones).

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

The square root of 6499582940 is about 80619.9909451744. The cubic root of 6499582940 is about 1866.2156626548.

The spelling of 6499582940 in words is "six billion, four hundred ninety-nine million, five hundred eighty-two thousand, nine hundred forty".