1728915013 has 8 divisors (see below), whose sum is σ = 2079897920. Its totient is φ = 1403930880.

The previous prime is 1728914987. The next prime is 1728915031. The reversal of 1728915013 is 3105198271.

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 1728915013 - 2¹³ = 1728906821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728915073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6499548 + ... + 6499813.

It is an arithmetic number, because the mean of its divisors is an integer number (259987240).

Almost surely, 2^1728915013 is an apocalyptic number.

It is an amenable number.

1728915013 is a deficient number, since it is larger than the sum of its proper divisors (350982907).

1728915013 is a wasteful number, since it uses less digits than its factorization.

1728915013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999387.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1728915013 is about 41580.2238209464. The cubic root of 1728915013 is about 1200.2117711901.

The spelling of 1728915013 in words is "one billion, seven hundred twenty-eight million, nine hundred fifteen thousand, thirteen".