6492849640 has 32 divisors (see below), whose sum is σ = 14753563560. Its totient is φ = 2571424000.

The previous prime is 6492849619. The next prime is 6492849673. The reversal of 6492849640 is 469482946.

It can be written as a sum of positive squares in 4 ways, for example, as 5475112036 + 1017737604 = 73994^2 + 31902^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799531 + ... + 807610.

Almost surely, 2^6492849640 is an apocalyptic number.

It is an amenable number.

6492849640 is an abundant number, since it is smaller than the sum of its proper divisors (8260713920).

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

6492849640 is a wasteful number, since it uses less digits than its factorization.

6492849640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607253 (or 1607249 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The square root of 6492849640 is about 80578.2206306394. The cubic root of 6492849640 is about 1865.5709991562.

The spelling of 6492849640 in words is "six billion, four hundred ninety-two million, eight hundred forty-nine thousand, six hundred forty".