728560646514 has 12 divisors (see below), whose sum is σ = 1578548067486. Its totient is φ = 242853548832.

The previous prime is 728560646491. The next prime is 728560646519. The reversal of 728560646514 is 415646065827.

728560646514 is a `hidden beast` number, since 7 + 2 + 8 + 5 + 60 + 64 + 6 + 514 = 666.

It can be written as a sum of positive squares in only one way, i.e., 646710297489 + 81850349025 = 804183^2 + 286095^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (728560646519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20237795719 + ... + 20237795754.

Almost surely, 2^728560646514 is an apocalyptic number.

728560646514 is an abundant number, since it is smaller than the sum of its proper divisors (849987420972).

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

728560646514 is a wasteful number, since it uses less digits than its factorization.

728560646514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40475591481 (or 40475591478 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 728560646514 in words is "seven hundred twenty-eight billion, five hundred sixty million, six hundred forty-six thousand, five hundred fourteen".