1359728657 has 8 divisors (see below), whose sum is σ = 1554522432. Its totient is φ = 1165071600.

The previous prime is 1359728609. The next prime is 1359728681. The reversal of 1359728657 is 7568279531.

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

It is a de Polignac number, because none of the positive numbers 2^k-1359728657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1359728599 and 1359728608.

It is not an unprimeable number, because it can be changed into a prime (1359728687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11894 + ... + 53487.

It is an arithmetic number, because the mean of its divisors is an integer number (194315304).

Almost surely, 2^1359728657 is an apocalyptic number.

It is an amenable number.

1359728657 is a deficient number, since it is larger than the sum of its proper divisors (194793775).

1359728657 is an equidigital number, since it uses as much as digits as its factorization.

1359728657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68359.

The product of its digits is 3175200, while the sum is 53.

The square root of 1359728657 is about 36874.4987355761. The cubic root of 1359728657 is about 1107.8579627495.

The spelling of 1359728657 in words is "one billion, three hundred fifty-nine million, seven hundred twenty-eight thousand, six hundred fifty-seven".