728611286630 has 16 divisors (see below), whose sum is σ = 1326236276160. Its totient is φ = 288169856832.

The previous prime is 728611286629. The next prime is 728611286657. The reversal of 728611286630 is 36682116827.

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, 409331294 + ... + 409333073.

It is an arithmetic number, because the mean of its divisors is an integer number (82889767260).

Almost surely, 2^728611286630 is an apocalyptic number.

728611286630 is a deficient number, since it is larger than the sum of its proper divisors (597624989530).

728611286630 is a wasteful number, since it uses less digits than its factorization.

728611286630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818664463.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 728611286630 in words is "seven hundred twenty-eight billion, six hundred eleven million, two hundred eighty-six thousand, six hundred thirty".