727425515521 has 8 divisors (see below), whose sum is σ = 759149239680. Its totient is φ = 695709835392.

The previous prime is 727425515491. The next prime is 727425515533. The reversal of 727425515521 is 125515524727.

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 727425515521 - 2⁵ = 727425515489 is a prime.

It is a super-2 number, since 2×727425515521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (727425515581) 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, 1825840 + ... + 2188273.

It is an arithmetic number, because the mean of its divisors is an integer number (94893654960).

Almost surely, 2^727425515521 is an apocalyptic number.

It is an amenable number.

727425515521 is a deficient number, since it is larger than the sum of its proper divisors (31723724159).

727425515521 is a wasteful number, since it uses less digits than its factorization.

727425515521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022015.

The product of its digits is 980000, while the sum is 46.

The spelling of 727425515521 in words is "seven hundred twenty-seven billion, four hundred twenty-five million, five hundred fifteen thousand, five hundred twenty-one".