722127862285 has 4 divisors (see below), whose sum is σ = 866553434748. Its totient is φ = 577702289824.

The previous prime is 722127862283. The next prime is 722127862307. The reversal of 722127862285 is 582268721227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582268721227 = 1531 ⋅380319217.

It can be written as a sum of positive squares in 2 ways, for example, as 411801991524 + 310325870761 = 641718^2 + 557069^2 .

It is a cyclic number.

It is not a de Polignac number, because 722127862285 - 2¹ = 722127862283 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 (722127862283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72212786224 + ... + 72212786233.

It is an arithmetic number, because the mean of its divisors is an integer number (216638358687).

Almost surely, 2^722127862285 is an apocalyptic number.

It is an amenable number.

722127862285 is a deficient number, since it is larger than the sum of its proper divisors (144425572463).

722127862285 is a wasteful number, since it uses less digits than its factorization.

722127862285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144425572462.

The product of its digits is 3010560, while the sum is 52.

The spelling of 722127862285 in words is "seven hundred twenty-two billion, one hundred twenty-seven million, eight hundred sixty-two thousand, two hundred eighty-five".