728674161816 has 32 divisors (see below), whose sum is σ = 1821795186240. Its totient is φ = 242876749728.

The previous prime is 728674161799. The next prime is 728674161821. The reversal of 728674161816 is 618161476827.

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, 504546 + ... + 1308401.

It is an arithmetic number, because the mean of its divisors is an integer number (56931099570).

Almost surely, 2^728674161816 is an apocalyptic number.

It is an amenable number.

728674161816 is an abundant number, since it is smaller than the sum of its proper divisors (1093121024424).

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

728674161816 is a wasteful number, since it uses less digits than its factorization.

728674161816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829703 (or 1829699 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The spelling of 728674161816 in words is "seven hundred twenty-eight billion, six hundred seventy-four million, one hundred sixty-one thousand, eight hundred sixteen".