728755070977 has 4 divisors (see below), whose sum is σ = 728861886400. Its totient is φ = 728648255556.

The previous prime is 728755070957. The next prime is 728755070993. The reversal of 728755070977 is 779070557827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 728755070977 - 2²⁷ = 728620853249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728755070957) 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 3 ways as a sum of consecutive naturals, for example, 53397477 + ... + 53411122.

It is an arithmetic number, because the mean of its divisors is an integer number (182215471600).

Almost surely, 2^728755070977 is an apocalyptic number.

It is an amenable number.

728755070977 is a deficient number, since it is larger than the sum of its proper divisors (106815423).

728755070977 is a wasteful number, since it uses less digits than its factorization.

728755070977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106815422.

The product of its (nonzero) digits is 60505200, while the sum is 64.

The spelling of 728755070977 in words is "seven hundred twenty-eight billion, seven hundred fifty-five million, seventy thousand, nine hundred seventy-seven".