501279470705 has 16 divisors (see below), whose sum is σ = 647822148624. Its totient is φ = 370167133440.

The previous prime is 501279470683. The next prime is 501279470719. The reversal of 501279470705 is 507074972105.

It can be written as a sum of positive squares in 8 ways, for example, as 583125904 + 500696344801 = 24148^2 + 707599^2 .

It is not a de Polignac number, because 501279470705 - 2¹⁸ = 501279208561 is a prime.

It is a super-2 number, since 2×501279470705² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501279470705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5098067 + ... + 5195463.

It is an arithmetic number, because the mean of its divisors is an integer number (40488884289).

Almost surely, 2^501279470705 is an apocalyptic number.

It is an amenable number.

501279470705 is a deficient number, since it is larger than the sum of its proper divisors (146542677919).

501279470705 is a wasteful number, since it uses less digits than its factorization.

501279470705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176596.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 501279470705 in words is "five hundred one billion, two hundred seventy-nine million, four hundred seventy thousand, seven hundred five".