247202777223 has 6 divisors (see below), whose sum is σ = 357070678224. Its totient is φ = 164801851476.

The previous prime is 247202777221. The next prime is 247202777249. The reversal of 247202777223 is 322777202742.

247202777223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247202777223 - 2¹ = 247202777221 is a prime.

It is a super-2 number, since 2×247202777223² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247202777221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13733487615 + ... + 13733487632.

It is an arithmetic number, because the mean of its divisors is an integer number (59511779704).

Almost surely, 2^247202777223 is an apocalyptic number.

247202777223 is a deficient number, since it is larger than the sum of its proper divisors (109867901001).

247202777223 is a wasteful number, since it uses less digits than its factorization.

247202777223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27466975253 (or 27466975250 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 45.

Adding to 247202777223 its reverse (322777202742), we get a palindrome (569979979965).

The spelling of 247202777223 in words is "two hundred forty-seven billion, two hundred two million, seven hundred seventy-seven thousand, two hundred twenty-three".