6345626540 has 48 divisors (see below), whose sum is σ = 14930171424. Its totient is φ = 2245132800.

The previous prime is 6345626537. The next prime is 6345626569. The reversal of 6345626540 is 456265436.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381641 + ... + 397920.

It is an arithmetic number, because the mean of its divisors is an integer number (311045238).

Almost surely, 2^6345626540 is an apocalyptic number.

It is an amenable number.

6345626540 is an abundant number, since it is smaller than the sum of its proper divisors (8584544884).

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

6345626540 is a wasteful number, since it uses less digits than its factorization.

6345626540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779618 (or 779616 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The square root of 6345626540 is about 79659.4409972854. The cubic root of 6345626540 is about 1851.3626717135.

The spelling of 6345626540 in words is "six billion, three hundred forty-five million, six hundred twenty-six thousand, five hundred forty".