3640547068 has 24 divisors (see below), whose sum is σ = 6557280912. Its totient is φ = 1767250944.

The previous prime is 3640547023. The next prime is 3640547089. The reversal of 3640547068 is 8607450463.

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, 42780 + ... + 95452.

It is an arithmetic number, because the mean of its divisors is an integer number (273220038).

Almost surely, 2^3640547068 is an apocalyptic number.

It is an amenable number.

3640547068 is a deficient number, since it is larger than the sum of its proper divisors (2916733844).

3640547068 is a wasteful number, since it uses less digits than its factorization.

3640547068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53181 (or 53179 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 3640547068 is about 60336.9461275594. The cubic root of 3640547068 is about 1538.3513964992.

The spelling of 3640547068 in words is "three billion, six hundred forty million, five hundred forty-seven thousand, sixty-eight".