610056285721 has 9 divisors (see below), whose sum is σ = 621826155741. Its totient is φ = 598505174592.

The previous prime is 610056285719. The next prime is 610056285749. The reversal of 610056285721 is 127582650016.

The square root of 610056285721 is 781061.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 203752029321 + 406304256400 = 451389^2 + 637420^2 .

It is not a de Polignac number, because 610056285721 - 2¹ = 610056285719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610056285781) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41388865 + ... + 41403601.

Almost surely, 2^610056285721 is an apocalyptic number.

610056285721 is the 781061-st square number.

610056285721 is the 390531-st centered octagonal number.

It is an amenable number.

610056285721 is a deficient number, since it is larger than the sum of its proper divisors (11769870020).

610056285721 is an frugal number, since it uses more digits than its factorization.

610056285721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29580 (or 14790 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 610056285721 in words is "six hundred ten billion, fifty-six million, two hundred eighty-five thousand, seven hundred twenty-one".