647064711830 has 16 divisors (see below), whose sum is σ = 1204879119120. Its totient is φ = 249900854112.

The previous prime is 647064711803. The next prime is 647064711841. The reversal of 647064711830 is 38117460746.

647064711830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1115628524 + ... + 1115629103.

It is an arithmetic number, because the mean of its divisors is an integer number (75304944945).

Almost surely, 2^647064711830 is an apocalyptic number.

647064711830 is a deficient number, since it is larger than the sum of its proper divisors (557814407290).

647064711830 is a wasteful number, since it uses less digits than its factorization.

647064711830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231257663.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 647064711830 in words is "six hundred forty-seven billion, sixty-four million, seven hundred eleven thousand, eight hundred thirty".