728311152427 has 4 divisors (see below), whose sum is σ = 728324711856. Its totient is φ = 728297593000.

The previous prime is 728311152367. The next prime is 728311152473. The reversal of 728311152427 is 724251113827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728311152427 - 2¹⁵ = 728311119659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728311159427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6698824 + ... + 6806677.

It is an arithmetic number, because the mean of its divisors is an integer number (182081177964).

Almost surely, 2^728311152427 is an apocalyptic number.

728311152427 is a deficient number, since it is larger than the sum of its proper divisors (13559429).

728311152427 is a wasteful number, since it uses less digits than its factorization.

728311152427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13559428.

The product of its digits is 188160, while the sum is 43.

The spelling of 728311152427 in words is "seven hundred twenty-eight billion, three hundred eleven million, one hundred fifty-two thousand, four hundred twenty-seven".