52098728721 has 16 divisors (see below), whose sum is σ = 74814332544. Its totient is φ = 32058226944.

The previous prime is 52098728719. The next prime is 52098728729. The reversal of 52098728721 is 12782789025.

It is not a de Polignac number, because 52098728721 - 2¹ = 52098728719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52098728729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529420 + ... + 620066.

It is an arithmetic number, because the mean of its divisors is an integer number (4675895784).

Almost surely, 2^52098728721 is an apocalyptic number.

It is an amenable number.

52098728721 is a deficient number, since it is larger than the sum of its proper divisors (22715603823).

52098728721 is a wasteful number, since it uses less digits than its factorization.

52098728721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105400.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 52098728721 in words is "fifty-two billion, ninety-eight million, seven hundred twenty-eight thousand, seven hundred twenty-one".