728518950947 has 8 divisors (see below), whose sum is σ = 729658600560. Its totient is φ = 727379516160.

The previous prime is 728518950923. The next prime is 728518950959. The reversal of 728518950947 is 749059815827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728518950947 - 2⁶ = 728518950883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728518950847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7575179 + ... + 7670747.

It is an arithmetic number, because the mean of its divisors is an integer number (91207325070).

Almost surely, 2^728518950947 is an apocalyptic number.

728518950947 is a deficient number, since it is larger than the sum of its proper divisors (1139649613).

728518950947 is a wasteful number, since it uses less digits than its factorization.

728518950947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107413.

The product of its (nonzero) digits is 50803200, while the sum is 65.

The spelling of 728518950947 in words is "seven hundred twenty-eight billion, five hundred eighteen million, nine hundred fifty thousand, nine hundred forty-seven".